Question

What is the total surface area of the square pyramid below?

A square pyramid. The square base has side lengths of 6 meters. The triangular sides have a height of 8 meters.

132 m2
144 m2
160 m2
228 m2

Answer 1

144

Explanation:

Answer 2

132m^2 or 144m^2

Explanation:

`A=a^2+2a\sqrt{(a^2)/(4)+h^2 } \\=6^2+2*6\sqrt{(6^2)/(4)+8^2 } \\=138.53m^2`

That is the exact answer, so i cant tell you which one to choose, as its close to the middle. But if i had to choose i would choose 144m^2 because its just that litte bit closer.