Question

Figure is not drawn to scale.What is the surface area of the sphere?What is the volume of the sphere?

Answer 1

The surface area of the sphere is given by:

$\begin{gathered} SA=4\pi r^2 \\ where \\ r=2m \\ so\colon \\ SA=4\pi(2^2)=16\pi_{\text{ }}m^2 \end{gathered}$

The volume of the sphere is:

$\begin{gathered} V=\frac{4}{3}\pi r^3 \\ V=\frac{4}{3}(\pi)(2^3) \\ V=\frac{32}{3}\pi_{\text{ }}m^3 \end{gathered}$