Surface Area Growing Post

So for this post we have to show what we know and learned about triangular prisms, rectangular prism & cylinders.

Rectangular Prism

Formula
A=LxW

Top A=LxW
A=30x10
A=300m squared

Front A=LxW
A=30x20 A=600m squared
Side A=LxW
A=20x10
A=200m squared Total Surface area= 300x2+200x2+600x2
Total Surface area= 2200m squared

Cylinder

Formulas Circumference=(PI)D

Area=d/2 Area=r2xpi
Area of a Prism LxW C=D(Pi)
C=12xPi C=37.68m2 A=D/2
A=12/2 A=6 A=6x6xPi A=113.04m2

37.68x74=2788.32

Total Surface Area= 2788.32+113.04x2 Total Surface Area= 3014.4m2

Triangular Prism
Formulas
A= BxH/2
A=LxW

A=LxW
A=100x2 A=200m squared A=BxH/2 A=100x8/2 A=400m squared TSA= 400x2+200+200 TSA=1200




Tell me what I did wrong or good.

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