Question

I’ve been asking for a tutor for two hours and I haven’t got one yet !!

Answer 1

ANSWER:

1809.5 square centimeters

STEP-BY-STEP EXPLANATION:

We have that the surface area of a sphere is given by the following equation:

$A_s=4\cdot\pi\cdot r^2$

We know the radius of the sphere, therefore we replace:

$\begin{gathered} A_s=4\cdot3.1415\cdot12^2 \\ A_s=1809.504\cong1809.5 \end{gathered}$

Therefore, the surface area is 1809.5 square centimeters.