Question

Find the surface area of the following triangular prism.

Answer 1

Steps:
Find the 2D area of the two triangles:
- multiply 6 x 8 and divide it by 2 (this is the bottom triangle.) 
           ** don't use 10 because it is the hypotenuse.
- 6 x 8 = 48
- 48 / 2 = 24 (you will need to use this twice since there are 2 triangles)

Now find the 2D area of the three rectangles
- first you have to convert 4 yd to feet. 
   **1 yd = 3 ft 
   ~4 yd = 12 ft
-now multiply 12 x 10
- 12 x 10 = 120ft (use this 3 times since there are 3 rectangles)

Now add all those together:
120 + 120 + 120 + 24 + 24 = 408