SOLUTION: the surface area of a sphere varies directly with the square of its radius. when the radius of a sphere mesures 2 meters, the surface area mesures 16 square meters. find the surfac

Question 1052578: the surface area of a sphere varies directly with the square of its radius. when the radius of a sphere mesures 2 meters, the surface area mesures 16 square meters. find the surface area of fa sphere with a radius of 3 meters
Found 2 solutions by addingup, advanced_Learner:
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
4Pir^2
4*3.1416*9 = 113.1
Answer by advanced_Learner(501) (Show Source): You can put this solution on YOUR website!
let S be the surface area of a sphere.

=
=
SOLVE for K
=
=
NOW IF Radius is 3 meters.
=
=
=
=
RELATED QUESTIONS
I have no idea what this is saying. Solve the problem. The surface area of a sphere... (answered by sudhanshu_kmr)
The surface area of a sphere varies directly with the square of its radius. If the... (answered by scott8148,Earlsdon)
The surface area of a sphere varies directly with the square of its radius. If the... (answered by Alan3354)
The surface area of a sphere varies directly as the square of the radius. If the surface (answered by Theo,Alan3354)
What is the radius of a sphere when its surface area is 113 square... (answered by Greenfinch)
The surface area of a sphere varies directly as the square of the radius. If the surface... (answered by Alan3354)
The surface area of a sphere varies directly as the square of a radius. a. if the... (answered by ewatrrr)
The surface area of a sphere is directly proportional to the square of its radius.A... (answered by Alan3354)
Find the radius of a sphere with a surface area of 1024 pi square inches (answered by ankor@dixie-net.com)