Question

Find the surface area of this solid.

rectangular pyramid ​

Answer 1

Check the picture below.

so the surface area is really just the area of four triangles with a base of 6 and a height of 8, and a 6x6 square.

`\stackrel{ \textit{\LARGE Areas} }{\stackrel{ square }{(6)(6)}~~ + ~~\stackrel{ \textit{four triangles} }{4\left[\cfrac{1}{2}(6)(8) \right]}}\implies 36+96\implies \text{\LARGE 132}~yd^2`