Question

A rectangular pyramid and a rectangular prism have bases of the same dimensions as shown below.



The surface area of the rectangular pyramid is 107 square inches. The height of the rectangular prism is the same as the slant height of the pyramid. What is the surface area of the rectangular prism?

214 in2

205 in2

210 in2

220 in2

Answer 1

Make an expression for the surface area of the square pyramid. You know the width, length, and surface area but not the height, so make the height the variable h.