1 answer
(click or scroll down)
The formula for the surface area of a sphere is 4Ï€r^2, where r is the radius of the sphere.
Substitute r = 3 cm into the formula:
Surface area = 4Ï€(3)^2
Surface area = 4Ï€(9)
Surface area = 36Ï€
Therefore, the surface area of a sphere with a radius of 3 cm is 36Ï€ square cm.