Question

A rectangular prism has a length of 8 in and a width of 7 in. The lateral area is 150 square in. What is height of prism?
Have no idea how to do this....please help

Answer 1

lateral area is the area of the four faces.

area=(lw+lh)*2 notice end areas are not in lateral area.
compute h, you know l, w, and area.

Answer 2

Hate to seem stupid, but still don't understand