Question

The base of a rectangular prism has dimensions of 3 feet by 4 feet.

If the height of the rectangular prism is 8 feet, find the number of square feet in its total area.

Answer 1

I'm assuming it is asking for surface area.

SA = 2(lw) + 2(hw) + 2(lh)
SA = 2(3*4) + 2(4*8) + 2(3*8)
SA = 2(12) + 2(32) + 2(24)
SA = 24 + 64 + 48
SA = 136 square feet