Question

What is the surface area of the pyramid ​​

Answer 1

Check the picture below.

so the area is just the area of those four triangles and the rectangular base

`\stackrel{ \textit{\LARGE Areas} }{\stackrel{ rectangle }{(5)(6)}~~ + ~~\stackrel{ two~triangles }{2\left[ \cfrac{1}{2}(5)(8) \right]}~~ + ~~\stackrel{ two~triangles }{2\left[ \cfrac{1}{2}(6)(7.8) \right]}} \\\\\\ 30~~ + ~~40~~ + ~~46.8\implies \text{\LARGE 116.8}~in^2`

Answer 2

116.8

Explanation:

You multiply 6x5 or the base. Then you multiply 5x8 which gives you 40, then divide that by 2. Then multiply it by 2. So 40+30=70. 7.8x6= 46.8. So 46.8+70=116.8