Question

I am trying to find the entire surface area of the entire shape. I got 306, but it is wrong.

Is it possible you could help?

Answer 1

281

Explanation:

12*4 rectangle 2 times because theres 2 of the same surfaces

5*4 rectangle 2 times

12*5 rectangle on the bottom surface 1 time

4 triangle surfaces of (5*5)/2

7*5 rectangle on top

add and you get 281