Question 760386
you would use the formula for the volume and surface area of a circle.
the formula for the volume of a sphere is (4/3) * pi * r^3
the formula for the surface area of a sphere is 4 * pi * r^2
here's a reference:
<a href = "http://math2.org/math/geometry/areasvols.htm" target = "_blank">http://math2.org/math/geometry/areasvols.htm</a>