SOLUTION: the diameter of a sphere is 63cm, what is the approximate surface area measurement.

Algebra ->  Equations -> SOLUTION: the diameter of a sphere is 63cm, what is the approximate surface area measurement.      Log On


   



Question 187368: the diameter of a sphere is 63cm, what is the approximate surface area measurement.
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!


*Remember: Surface Area of Sphere=> A=4PI%28R%29%5E2 *see www.math.com/tables
We know, Radius=+Diameter%2F2=63cm%2F2=31.50cm
Substituting:
A=4PI%2831.5%29%5E2=4PI%28992.25%29
red%28A=12468.981cm%5E2%29 ==> Area=12,469 sq cm

Thank you
Jojo