Question

What is the surface area of the sphere shown below with a radius of 8?A. 683 sq. unitsOB. 85, sq. unitsOC. 256 sq. unitsOD. 64 sq. units

Answer 1

The surface area of a sphere of radius r is:

$A=4\pi r^2$

The radius of the sphere is r = 8, thus:

$\begin{gathered} A=4\pi(8)^2 \\ \\ A=4\pi\cdot64 \\ \\ \boxed{A=256\pi} \end{gathered}$