Question #3929d

1 Answer
Dec 6, 2017

361pi units^2

Explanation:

Circumference=19pi

Diameter = (Circumference)/pi =(19pi)/pi=19

Radius=(Diameter)/2=19/2=9.5

Surface area of sphere=4pir^2=4pi(9.5)^2=361pi units^2

I gave the answer in units^2 because you did not provide the measuring unit of the circumference of the sphere.