Sphere Calculator
Sphere Calculator will calculate the 3 unknown
values of a sphere given any 1 known variable
including radius r, surface area A, volume V and
circumference C. It will also give the answers
for volume, surface area and circumference in
terms of PI π. A sphere is a set of points in
three dimensional space that are located at an
equal distance r (the radius) from a given point
(the center point).