Question

The function V descr

Answer 1

we have the function

$V(r)=4\pi r^2$

For r=4 in

substitute the given value in the function above

$\begin{gathered} V(r)=4\pi\cdot(4^2) \\ V(r)=64\pi cm2 \end{gathered}$

The surface area is 64pi square centimeters