Question

What is the surface area of the sphere, in square meters?

Possible answers:

A. Not enough information is given to calculate this surface area.

B. 804

C. 2144

D. 201

Answer 1

`\textit{surface area of a sphere}\\\\ SA=4\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=8 \end{cases}\implies SA=4\pi (8)^2\implies \stackrel{using~\pi =3.14}{SA\approx 804}`