Question

Find the surface area of the sphere.

Answer 1

$A = 201.1\:\text{cm}^2$

Step-by-step explanation:

Given: r = 4 cm

The surface area A of a sphere is given by

$A = 4\pi r^2 = 4\pi(4\:\text{cm})^2$

$\:\:\:\:\:= 201.1\:\text{cm}^2$