Question

What is the surface area ?

Answer 1

Answer:

A. 78

Step-by-step explanation:

7 x 4 is the bottom and the bottom is the same as the top so I got 28 x 2 which is 56. 4 x 1 is one side. The other side is the same so I got 4 x 2 which is 8. 1 x 7 is the front and back. I got 7 x 2 is 14. i wrote 56 + 14 + 8 and got 78

hope this helps :)

Answer 2

SA = 2lw + 2lh + 2hw
= 2(7)(4) + 2(7)(1) + 2(1)(4)
=78 feet squared

hope this helps!! :)