Monday, March 8, 2010

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

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