Question

Find the surface area of a basketball with a diameter of 24 cm. Answers are in terms of pi.

Answer 1

if it has a diameter of 24, then its radius must be half that, or 12.

`\textit{surface area of a sphere}\\\\ SA=4\pi r^2 ~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=12 \end{cases}\implies SA=4\pi (12)^2\implies SA=576\pi`