Answer
a. $4,120\ in^2.$
b. $24,800\ in^3.$
Work Step by Step
a. The area of the sphere is
$A=4\pi r^2=4 \pi (36.2/2)^2=4116.86\ in^2\approx 4,120\ in^2.$
b. The volume of the sphere is
$V=\frac{4}{3}\pi r^3=\frac{4}{3} \pi (36.2/2)^3= 24838.44\ in^3 \approx 24,800\ in^3.$