Question

Which rectangular prism has a surface area of 56 square units?

5 by 3 by 1
5 by 3 by 2
2 by 2 by 6
6 by 2 by 4
Please help quick!

Answer 1

I believe the answer is the 3rd one

Answer 2

2 by 2 by 6.

Explanation:

Given : Rectangular prism has a surface area of 56 square units.

To find : FInd dimensions of prism.

Solution : we have given that Surface area of rectangular prism = 56 units.

Formula of Surface area of rectangular prism = 2(wl+hl+hw)

l = length , w = width , h = height.

Surface area of rectangular prism = 2( 2*2 + 2 *6 + 6 *2 )

Surface area of rectangular prism = 2( 4 + 12 +12)

Surface area of rectangular prism = 2(28)

Surface area of rectangular prism = 56.

Therefore, 2 by 2 by 6.