Triangular Prism
Rectangular Prism
Showing posts with label surface area. Show all posts
Showing posts with label surface area. Show all posts
Wednesday, March 10, 2010
Tuesday, March 9, 2010
Justine's Growing Post ...
How to find TSA (Total Surface Area) or a rectangular Prism..
Lets get starts, first things first.
You Make your Rectangular Prism that you want to know what the TSA of it.
Find the L, W and H.
ex. W=5 L=4 H=6
theres my WLH(Width Lenght Height)
Formula... LxW
First of all... Make a net of the rectangle you just made with the exact WLH you did.
Lable the numbers all of them. then find the area of each net squares.
................[]
like... [][][][]
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there is my kind of net.. think about the first square look at the numbers you labled then add them or just do LxW
PART 2
On this topic we learn about fractions and converting fractions.
We learned how to convert mixed fractions to improper fractions and also converting improper fractions to improper fractions.
Lets get starts, first things first.
You Make your Rectangular Prism that you want to know what the TSA of it.
Find the L, W and H.
ex. W=5 L=4 H=6
theres my WLH(Width Lenght Height)
Formula... LxW
First of all... Make a net of the rectangle you just made with the exact WLH you did.
Lable the numbers all of them. then find the area of each net squares.
................[]
like... [][][][]
................[]
there is my kind of net.. think about the first square look at the numbers you labled then add them or just do LxW
PART 2
On this topic we learn about fractions and converting fractions.
We learned how to convert mixed fractions to improper fractions and also converting improper fractions to improper fractions.
Monday, March 8, 2010
Elvin's Growing Post
Cylinder
How to find the TSA of a cylinder:
The cylinder has two circular bases.
The area of one circle is:
A = π × r2
A ≈ 3.14 × 0.3752
A ≈ 0.4415625
The area of the circle is
approximately 0.4415625 m2.
There are two circles, so the area
of both circles is approximately
0.883125 m2.
Calculate the total surface area.
S.A. ≈ 0.883125 + 5.652
S.A. ≈ 6.535125
The total surface area is approximately 6.54 m2
Rectangular Prism
How to find the TSA of a Rectangualar Prism:
Find the area of one circle.
A = π × r2
A ≈ 3.14 × 3.752
A ≈ 44.15625
The area of one circle is approximately 44.15625 cm2.
Find the area of two circles.
2 ×44.15625 = 88.3125
The area of both circles is approximately 88.3125 cm2.
Find the area of the rectangle using the circumference of the circle.
A = l × w
A = (π × d) × w
A ≈ 3.14 × 7.5 × 11
A ≈ 259.05
The area of the rectangle is approximately 259.05 cm2.
Calculate the total surface area.
Surface area = 88.3125 + 259.05
= 347.3625
Triangular Prism
How to find the TSA of a Triangular Prism:
a)
3 m
2.6 m
9 m
b) The bases of the prism are equilateral triangles.
The sides of the prism are rectangles.
3 m 3 m
9 m 2.6 m
rectangle triangle
A = l ×w A= (b × h) ÷ 2
A = 9 × 3 A = (3 × 2.6) ÷ 2
A = 27 A = 7.8 ÷ 2
A = 3.9
The area of one The area of one
rectangle is 27 m2. triangle is 3.9 m2.
http://www.ustream.tv/recorded/5207365
How to find the TSA of a cylinder:
The cylinder has two circular bases.
The area of one circle is:
A = π × r2
A ≈ 3.14 × 0.3752
A ≈ 0.4415625
The area of the circle is
approximately 0.4415625 m2.
There are two circles, so the area
of both circles is approximately
0.883125 m2.
Calculate the total surface area.
S.A. ≈ 0.883125 + 5.652
S.A. ≈ 6.535125
The total surface area is approximately 6.54 m2
Rectangular Prism
How to find the TSA of a Rectangualar Prism:
Find the area of one circle.
A = π × r2
A ≈ 3.14 × 3.752
A ≈ 44.15625
The area of one circle is approximately 44.15625 cm2.
Find the area of two circles.
2 ×44.15625 = 88.3125
The area of both circles is approximately 88.3125 cm2.
Find the area of the rectangle using the circumference of the circle.
A = l × w
A = (π × d) × w
A ≈ 3.14 × 7.5 × 11
A ≈ 259.05
The area of the rectangle is approximately 259.05 cm2.
Calculate the total surface area.
Surface area = 88.3125 + 259.05
= 347.3625
Triangular Prism
How to find the TSA of a Triangular Prism:
a)
3 m
2.6 m
9 m
b) The bases of the prism are equilateral triangles.
The sides of the prism are rectangles.
3 m 3 m
9 m 2.6 m
rectangle triangle
A = l ×w A= (b × h) ÷ 2
A = 9 × 3 A = (3 × 2.6) ÷ 2
A = 27 A = 7.8 ÷ 2
A = 3.9
The area of one The area of one
rectangle is 27 m2. triangle is 3.9 m2.
http://www.ustream.tv/recorded/5207365
Celdrick's growing post
Rectangular Prism
Triangular Prism
Cylinder
Sorry if the pictures are small.....COMMENT
Gilberts Surfuce Area Growing Post
Rectangular Prism
OK so to get the total surface area (TSA) you can start of by by finding the area of the front side and the top view of the prism. To find the area of the sides you should use the formula l x w=area. After you find the areas of the sides add them all together and times the sum by 2. Now after you did that you have the area of the rectangular prism.
Triangular Prism
OK the Triangular Prism is probably the easiest of them all. All you have to do is draw a net of the prism and label all the measurements. After you have done that you find the area of the faces using the formula which is b x h /2 = Area. After you have done all of that you need to get the TSA so to do that you need to add up the total of each side and you will have the TSA.
Cylinder
OK now onto the cylinder the hard one. OK so first you have to draw the net of the cylinder. Then second you have to find the radius you have to use the formula d/2=r. Then third you have to find the circumference by using the formula pi x d=c . After you have done that you need to find the area of the circle to find that you use the formula pi x r x r= Area. After that you must find the area of the rectangle to do that you use the formula l x w Now that you have the area of the circle and the rectangle you add that to the TSA and then you have the answer.
Sorry my videos wouldn't upload so here are the link to them please enjoy.
http://www.ustream.tv/recorded/5206050
http://www.ustream.tv/recorded/5205963
http://www.ustream.tv/recorded/5160089
OK so to get the total surface area (TSA) you can start of by by finding the area of the front side and the top view of the prism. To find the area of the sides you should use the formula l x w=area. After you find the areas of the sides add them all together and times the sum by 2. Now after you did that you have the area of the rectangular prism.
Triangular Prism
OK the Triangular Prism is probably the easiest of them all. All you have to do is draw a net of the prism and label all the measurements. After you have done that you find the area of the faces using the formula which is b x h /2 = Area. After you have done all of that you need to get the TSA so to do that you need to add up the total of each side and you will have the TSA.
Cylinder
OK now onto the cylinder the hard one. OK so first you have to draw the net of the cylinder. Then second you have to find the radius you have to use the formula d/2=r. Then third you have to find the circumference by using the formula pi x d=c . After you have done that you need to find the area of the circle to find that you use the formula pi x r x r= Area. After that you must find the area of the rectangle to do that you use the formula l x w Now that you have the area of the circle and the rectangle you add that to the TSA and then you have the answer.
Sorry my videos wouldn't upload so here are the link to them please enjoy.
http://www.ustream.tv/recorded/5206050
http://www.ustream.tv/recorded/5205963
http://www.ustream.tv/recorded/5160089
Kenneth's Growing Post
Rectangular Prism (Formula A=LxW)
Front
A=LxW
A= 10 x 3
A= 30cm2
Top
A=LxW
A= 10x5
A= 50cm2
Front
A=LxW
A=3 x 5
A= 15cm2
TSA= 50+50+30+30+15+15 = 190cm2
Cylinder (Formula= d/2=r - C=(pi) x d)
(cylinder Picture is at the top)
Top
d/2=r
50/2=r
25cm2
C=(pi) x d
C=3.14 x 50
C=157cm2
TSA= 157 + 157 + 25 + 25 = 364cm2
Triangular Prism (Formula= b x h/2 - A=L x W)
(triangular prism is at the top)
A=b x h/2
A=10 x 20/2
A=100cm2
A=L x W
A=50 x 30
A=1500cm2
TSA= 1500 + 1500 + 100 + 100 = 4700cm2
Please Correct me If I did something wrong or if I forgot to do a net. xD .... Oh and please Comment 8D
Marielle's Growing Post
Rectangular Prism
the formula you have to use to find the total surface area of a rectangular prism is A=LxW .
For example if you have a rectangular prism with a height of 6cm, Length of 10cm and a width of 4cm. To calculate the total surface area of the rectangular prism you have to use the formula.
Front and back : 6cm x 10cm
A= l x w
A= 10 x 6
A= 60 cm
A= 60 x 2
A= 120cm
Top and bottom: 4cm x 10cm
A= l x w
A= 10 x 4
A= 40cm
A= 40 x 2
A= 80cm
ends: 4cm x 6cm
A= l x w
A= 6 x 4
A= 24cm
A= 24 x 2
A= 48cm
A rectangular prism has 6 sides therefore you have to times it by 2 because there are two sides of the same area.
To get the total surface area you. add it all together
TSA= (area of front and back) + (area of top and bottom) + (area of ends)
TSA= 120 + 80 + 48
TSA= 248cm2
Triangular Prism
to find out the total surface area of a triangular prism the formula you need is A=L x W & B x H/2
For example if you have a length of 10cm, base of 4cm and a height of 5 here's what you have to do, to get the total surface area.
A=L x H
A= 10 x 3
A= 30cm
A= 30x3
A= 90cm
You times this by three since there are 3 equal sides.
A=B x H/2
A= 5 x 3/2
A= 7.5cm
A=7.5 x 2
A= 15cm
You times this by two because there are two sides of a triangle.
Now to get the total surface area you have to add these together.
TSA= (3 x area of a rectangle)+(2 x area of a triangle)
TSA= 90cm + 15cm
TSA= 105cm2
Cylnder
to find out the total surface area of a cylinder you have to use the formula R= d/2, A= L x W and C= pi x r x r
For example if you have a cylinder with a diameter of 2cm and the length being 15 cm. To find the total surface area you'll have to do this ..
R= d/2
R= 2/1
R= 1cm
C= pi x d
C= 3.14 x 2
C= 6.28 cm
A= pi x r x r
A= 3.14 x 1 x 1
A= 3.14
A= 3.14 x 2
A= 6.28
You times it by two because there are two circles. One end and the other.
A= L x W
A= 15 x 6.28
A= 94.2cm
TSA= (area of the circles x 2) + (area of the rectangle)
TSA= 3.14 + 3.14 + 94.2
TSA=100.48cm2
How to find the surface area of a rectangular prism.
http://www.ustream.tv/recorded/5160006
leave a comment :)
the formula you have to use to find the total surface area of a rectangular prism is A=LxW .
For example if you have a rectangular prism with a height of 6cm, Length of 10cm and a width of 4cm. To calculate the total surface area of the rectangular prism you have to use the formula.
Front and back : 6cm x 10cm
A= l x w
A= 10 x 6
A= 60 cm
A= 60 x 2
A= 120cm
Top and bottom: 4cm x 10cm
A= l x w
A= 10 x 4
A= 40cm
A= 40 x 2
A= 80cm
ends: 4cm x 6cm
A= l x w
A= 6 x 4
A= 24cm
A= 24 x 2
A= 48cm
A rectangular prism has 6 sides therefore you have to times it by 2 because there are two sides of the same area.
To get the total surface area you. add it all together
TSA= (area of front and back) + (area of top and bottom) + (area of ends)
TSA= 120 + 80 + 48
TSA= 248cm2
Triangular Prism
to find out the total surface area of a triangular prism the formula you need is A=L x W & B x H/2
For example if you have a length of 10cm, base of 4cm and a height of 5 here's what you have to do, to get the total surface area.
A=L x H
A= 10 x 3
A= 30cm
A= 30x3
A= 90cm
You times this by three since there are 3 equal sides.
A=B x H/2
A= 5 x 3/2
A= 7.5cm
A=7.5 x 2
A= 15cm
You times this by two because there are two sides of a triangle.
Now to get the total surface area you have to add these together.
TSA= (3 x area of a rectangle)+(2 x area of a triangle)
TSA= 90cm + 15cm
TSA= 105cm2
Cylnder
to find out the total surface area of a cylinder you have to use the formula R= d/2, A= L x W and C= pi x r x r
For example if you have a cylinder with a diameter of 2cm and the length being 15 cm. To find the total surface area you'll have to do this ..
R= d/2
R= 2/1
R= 1cm
C= pi x d
C= 3.14 x 2
C= 6.28 cm
A= pi x r x r
A= 3.14 x 1 x 1
A= 3.14
A= 3.14 x 2
A= 6.28
You times it by two because there are two circles. One end and the other.
A= L x W
A= 15 x 6.28
A= 94.2cm
TSA= (area of the circles x 2) + (area of the rectangle)
TSA= 3.14 + 3.14 + 94.2
TSA=100.48cm2
How to find the surface area of a rectangular prism.
http://www.ustream.tv/recorded/5160006
leave a comment :)
Sunday, March 7, 2010
Surface Area Growing Post
Rectangular Prism
Formula:
A = lxw
Triangular Prism
Formula:
A = lxw
A = bxh/2
Cylinder:
Formula:
r = d/2
SA = 2x(πxr²)+(πxdxh)
Sorry, the videos wont upload.. So, here are the links:
Cylinder - http://www.ustream.tv/recorded/5160205
Rectangular Prism - http://www.ustream.tv/recorded/5160282
Triangular Prism - http://www.ustream.tv/recorded/5160248
Formula:
A = lxw
Triangular Prism
Formula:
A = lxw
A = bxh/2
Cylinder:
Formula:
r = d/2
SA = 2x(πxr²)+(πxdxh)
Sorry, the videos wont upload.. So, here are the links:
Cylinder - http://www.ustream.tv/recorded/5160205
Rectangular Prism - http://www.ustream.tv/recorded/5160282
Triangular Prism - http://www.ustream.tv/recorded/5160248
noelle cuvos' Growing Post
MY GROWING POST !
Rectangular Prism
To find the TSA (Total Surface Area) of a rectangular prism, you can start by find the area of the front view, side view and the top view. In order to do this you must use the formula l x w = area of a square. Then add the sum of the 3 views' area and multiply by 2 (the opposite sides of each view) with this formula, TSA = (Top + Side + Front) x 2
Triangular Prism
To find the TSA of a triangular prism you can start by drawing a net. Then you can find the area of all the 5 faces by using the formula b x h / 2 = area of a triangle. Then calculate all the faces together to get the total surface area.
Cylinder
To find the TSA of a cylinder you must start by finding the surface area of 1 of the 2 circles then multiplying that by 2 for each circle. To find the area of a cirlce you must have the radius. Once you have it you use the formula A = pi x R x R. Then multiply it by two for the area of both circles. Then to find the area of the rectangle you use the formula l x w, but to find the length you need the circumference of the circle because they are equal. to find the circumference you can use the formula C= D x pi. If you already have the Radius you can multiply that radius by 2 to get the diameter. After all this, you'll have the area of both circles and the rectangle, then you must simply add the 2 areas together.
COMMENT
Rectangular Prism
To find the TSA (Total Surface Area) of a rectangular prism, you can start by find the area of the front view, side view and the top view. In order to do this you must use the formula l x w = area of a square. Then add the sum of the 3 views' area and multiply by 2 (the opposite sides of each view) with this formula, TSA = (Top + Side + Front) x 2
Triangular Prism
To find the TSA of a triangular prism you can start by drawing a net. Then you can find the area of all the 5 faces by using the formula b x h / 2 = area of a triangle. Then calculate all the faces together to get the total surface area.
Cylinder
To find the TSA of a cylinder you must start by finding the surface area of 1 of the 2 circles then multiplying that by 2 for each circle. To find the area of a cirlce you must have the radius. Once you have it you use the formula A = pi x R x R. Then multiply it by two for the area of both circles. Then to find the area of the rectangle you use the formula l x w, but to find the length you need the circumference of the circle because they are equal. to find the circumference you can use the formula C= D x pi. If you already have the Radius you can multiply that radius by 2 to get the diameter. After all this, you'll have the area of both circles and the rectangle, then you must simply add the 2 areas together.
COMMENT
Argie's Surface Area Growing Post
Rectangular Prism
To find to find the total surface area (TSA) you can start by finding the area of the front, side and top view of the prism. To find the area of each side you use the formula l x w = A. Once you find the area of each side add them all together and times the sum by two. After hat has been done you now have the area of the rectangular prism.
Triangular Prism
You have to find the TSA of the triangular prism, first you draw a net of the prism and label the measurements. After that has been done you find the area of all the faces using the formula b x h / 2 = A. Once you have finished finding the area of the sides, you then add up the total of each side and you will have the TSA.
Cylinder
When finding the TSA of a cylinder you have to use many formulas. First you have to draw a net of the cylinder. Second you have to have to find the radius, to find the radius you use the formula d/2=r. Third, you have to find the circumfrence of the circle by using the formula pi x d=c. After that has been done you must find the area of the circle, to find the area you must use the formula pi x r x r =A. Now you have the area of the cylinder, now you must find the area of the rectangle. To do that you use the formula l x w = A. Now that you have the area of both the circle and rectangle you add both areas to get the TSA of the cylinder.
To find to find the total surface area (TSA) you can start by finding the area of the front, side and top view of the prism. To find the area of each side you use the formula l x w = A. Once you find the area of each side add them all together and times the sum by two. After hat has been done you now have the area of the rectangular prism.
Triangular Prism
You have to find the TSA of the triangular prism, first you draw a net of the prism and label the measurements. After that has been done you find the area of all the faces using the formula b x h / 2 = A. Once you have finished finding the area of the sides, you then add up the total of each side and you will have the TSA.
Cylinder
When finding the TSA of a cylinder you have to use many formulas. First you have to draw a net of the cylinder. Second you have to have to find the radius, to find the radius you use the formula d/2=r. Third, you have to find the circumfrence of the circle by using the formula pi x d=c. After that has been done you must find the area of the circle, to find the area you must use the formula pi x r x r =A. Now you have the area of the cylinder, now you must find the area of the rectangle. To do that you use the formula l x w = A. Now that you have the area of both the circle and rectangle you add both areas to get the TSA of the cylinder.
Surface Area Growing Post
Sorry, It wouldn't let me upload the other videos.
I will try again tomorrow .
Sorry !
If I did anything wrong, please type it in the comment box.
DON'T FORGET TO LEAVE A COMMENT !
Jamie's Surface Area Growing Post
Cylinder Prism
The formulas needed to find the surface area of a cylinder are:
A = πr²
C = πd
D = r x 2
The formulas needed to find the surface area of a triangular prism are:
A = b x h / 2
A = l x w
The formula needed to find the surface area of a rectangular prism is:
A = l x w
^ For this video, in the last 25 seconds of it there is static. I don't know what that is, but whenever the video was recorded, there was always static. I apologize for that.
I'm sorry if my pictures are too small, but please leave a comment behind, and please let me know if I made errors. :)
Jennifer's Surface Area Growing Post !
- Sorry about not putting pictures , it wouldn't let me upload it !
Triangular Prism:
To find the area of a triangle you must use this formula :
a=lxw/2
By using this formula I can find the area of a triangular prism,
Here are the steps to find the total surface area !
1. make a net of the triangular prism
-use the formula for each face on the triangular prism.
2.use the rectangular prism formula when there was a square and used the triangular prism formula when there was a triangle.
3. After I found the area of all the faces I added them all up to get the Total Surface Area
Rectangular Prism:
To find the area of a square you use this formula
a= lxw
Using this formula I can find the area of a rectangular prism.
Here are the steps to find the total suface area of a rectangular prism :)
1.make a net of the rectangular prism
2.use the formula for each face on the prism.
3. find the area of all the faces and add them all up to get the Total Surface Area !
Cylinder :
For the cylinder, you use 2 formulas.
How do you find the circumference ?
you use this formula. C = pi x r x r
If you need to find the area of the circle you use this formula:
a = (pi) x d
Here are the steps to find the total surface area of a cylinder !
1. Make a net of the cylinder.
2. Use another formula to get the diameter of the cyclinder which is, r x 2 = d.
3. I used the radius to calculate the circumference.
4. I used the diamter to find the area of the circle.
5. I used the rectangular prism formula to figure out the rectangular part of the net.
6. I then added the 2 circles and the rectangular part of the net and got the Total Surface Area.
Triangular Prism:
To find the area of a triangle you must use this formula :
a=lxw/2
By using this formula I can find the area of a triangular prism,
Here are the steps to find the total surface area !
1. make a net of the triangular prism
-use the formula for each face on the triangular prism.
2.use the rectangular prism formula when there was a square and used the triangular prism formula when there was a triangle.
3. After I found the area of all the faces I added them all up to get the Total Surface Area
Rectangular Prism:
To find the area of a square you use this formula
a= lxw
Using this formula I can find the area of a rectangular prism.
Here are the steps to find the total suface area of a rectangular prism :)
1.make a net of the rectangular prism
2.use the formula for each face on the prism.
3. find the area of all the faces and add them all up to get the Total Surface Area !
Cylinder :
For the cylinder, you use 2 formulas.
How do you find the circumference ?
you use this formula. C = pi x r x r
If you need to find the area of the circle you use this formula:
a = (pi) x d
Here are the steps to find the total surface area of a cylinder !
1. Make a net of the cylinder.
2. Use another formula to get the diameter of the cyclinder which is, r x 2 = d.
3. I used the radius to calculate the circumference.
4. I used the diamter to find the area of the circle.
5. I used the rectangular prism formula to figure out the rectangular part of the net.
6. I then added the 2 circles and the rectangular part of the net and got the Total Surface Area.
Surface Area Growing Post- March. 7, 2010
It's not the way it was suppost to be, the words are in the wrong place and i'm tired of trying to fix it.. but this is my Surface Area Growing Post :) Sorry ..
The picture thingy took forever -_-"
Rectangular Prism:
lxw= lxw= lxw=
5x10= 5x6= 10x6=
50cm= 30cm= 60cm=
5x10= 5x6= 10x6=
50cm= 30cm= 60cm=
Triangular Prism:
Formula = bxh/2
Cylinder Prism:
d=3.14x10cm31.4
c=3.14 d
c=3.14x10
c=31.4
O=3.14
d/2=r
c=3.14 d
c=3.14x10
c=31.4
O=3.14
d/2=r
3.14x5x5
785m2
785m2
lxw
3.14x20=
3.14x20=
628cm2=
785+785+620=785cm squared
Surface Area Growing Post
Rectangular Prism
Formulas
area of rectangle =length x width
Triangular Prism
Formulas
area of rectangle=length x width
area of triangle=base x height / 2
Cylinder
Formulas
area of rectangle= length x width
circumference=pi x d
area of circle= pi x r x r
radius= d / 2
diameter= r x 2
Feel free to leave a comment (:
Surface Area Growing Post
Rectangular Prism
The formula to find the surface area of a rectangular prism is
A = L x W
Triangular Prism
There are two formulas that you would use when you're looking for the surface area of a triangular prism, they are :
A= L x w
A= B x H / 2
Cylinder
When your looking for the surface are of a cylinder, you will need to know several formulas like:
A = L x W
r = d / 2
d = r x 2
C = Pi x d
A = Pi x r x r
The formula to find the surface area of a rectangular prism isA = L x W
Triangular Prism
There are two formulas that you would use when you're looking for the surface area of a triangular prism, they are :
A= L x w
A= B x H / 2
Cylinder
When your looking for the surface are of a cylinder, you will need to know several formulas like:
A = L x W
r = d / 2
d = r x 2
C = Pi x d
A = Pi x r x r
Surface Area Growing Post
For are Growing post we had to find the surface area of a rectangular prism, triangular prism and a cylinder.
Rectangular Prism
First I find the area of the top side and front.
Now that i have the areas of the front, side and top i can add all the areas together and multiply them by 2.
249.75 + 92.5 + 67.5 = 409.75 X 2 = 819.5 cm2.
Triangular Prism
For triangular prism you first draw a net.
Cylinder
For a Cylinder we first have to find out the circumference of the circle.
After we find all the areas we added them all together to make one surface area. 1727 cm 2
Rectangular Prism
First I find the area of the top side and front.
Now that i have the areas of the front, side and top i can add all the areas together and multiply them by 2.
249.75 + 92.5 + 67.5 = 409.75 X 2 = 819.5 cm2.
Triangular Prism
For triangular prism you first draw a net.
Cylinder
For a Cylinder we first have to find out the circumference of the circle.
After we find all the areas we added them all together to make one surface area. 1727 cm 2
Wednesday, March 3, 2010
Brendan's Surface Area Growing Post
To find the surface area of a rectangular prism, you must use the formula "A=L x W" to find the surface area of a face of the rectangular prism.
I found the surface area of my rectangular prism by finding the surface areas of all six faces and adding them all together.
a=L x W a=5x10 a=50 squared cm
a=8x10 a=80 squared cm
a=8x5 a=40 squared cm
a=5x10 a=50 squared cm
a=8x10 a=80 squared cm
a=8x5 a=40 squared cm
TSA=50+50+80+80+40+40
I found the surface area of my rectangular prism by finding the surface areas of all six faces and adding them all together.
a=L x W a=5x10 a=50 squared cm
a=8x10 a=80 squared cm
a=8x5 a=40 squared cm
a=5x10 a=50 squared cm
a=8x10 a=80 squared cm
a=8x5 a=40 squared cm
TSA=50+50+80+80+40+40
To find the surface area of a triangular prism, you must use the formula "A=L x W/2" for the triangle faces and "A=LxW" for the rectangle faces.
I found the surface area of my triangular prism by finding the surface areas of all five faces of the triangular prism and adding them all together.
a=L x W a=3x3 a=9 squared m
a=3x4 a= 12 squared m
I found the surface area of my triangular prism by finding the surface areas of all five faces of the triangular prism and adding them all together.
a=L x W a=3x3 a=9 squared m
a=3x4 a= 12 squared m
a=5x3 a=15 squared m
a=L x W/2 a= 4x4/2 a=8 squared m
TSA= 9+12+15+8+8
TSA= 52 squared m
TSA= 9+12+15+8+8
TSA= 52 squared m
To find the surface area of a cylinder, you must use the formula "A=2 x pi x rsquared + pi x d x h" or "A=pi x r x r" to find the circles surface area and "A=l x w" for the big rectangles surface area. Then you can add the two circles surface area and the big rectangles surface area to get the total surface area.
I found the surface area of my cylinder by finding the area of the two cirlces and the big rectangle.
I found the surface area of my cylinder by finding the area of the two cirlces and the big rectangle.
r=d/2 r=5/2 r=4.5 squared mm
C=pi x d C= 3.14 x 5 C= 15.7 mm
a=pi x r x r a= 3.14 x 4.5 x 4.5 a= 63.59 squared mm
a= L x W a=15.7x10 a=157
TSA= 63.59+63.59+157
TSA= 284.18 m
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