200k views
4 votes
The surface area of a sphere is found using the formula SA=4πr^2, where r is the radius. If the surface area of a sphere is 64π square feet, what is the radius, in feet?

User Crowleym
by
7.9k points

1 Answer

0 votes
SA =
4 \pi r^(2)

64 \pi = 4 \pi r^(2)

16= r^(2)

r^(2)=16

r=4

User HunterLion
by
6.9k points