The 3-dimensional shape of a circle is a sphere. In order to solve the volume (v) of a sphere from the radius or diameter of any circumscribed circle within is as follows: v = 4/3 × pi × r^3, where pi roughly = 3.14 v = 4/3 × 3.14 × (10cm)^3 v = 1.33 × 3.14 × 1000cm^3 v = 4,188.56 cm^3 (cubic cm) v = 4,189 cm^3 (rounded up)
