Geometry
posted by Sam .
A right prism has bases that are squares. The area of one base is 81 square feet. The lateral area of the prism is 144 square feet. What is the altitude of the prism.

Right prism has both bases the same.
laterial area= 4*(side)height
where side= sqrt 81=9
144= 4*9*height
solve for height 
38