Question

Which of the following rectangular prisms will have a surface area of 24 square units?

A rectangular prism with a length of 5, width of 3, and height of 1.
A rectangular prism with a length of 2, width of 2, and height of 2.
A rectangular prism with a length of 2, width of 1, and height of 2.
A rectangular prism with a length of 2, width of 2, and height of 6.

Answer 1

A rectangular prism with a length of 2, width of 2, and height of 2.

Explanation:

Calculate the SA of each face. There are 2 of each size.

2 x (2*2) = 8

2 x (2*2) = 8

2 x (2*2) = 8

8+8+8=24

Answer 2

2nd option

Explanation: