Question

The radius of a small ornament in the shape of a sphere is 2 inches. What is the approximate volume of the ornament? Use 3.14 for pie. Round to the nearest tenth of a cubic inch.

Answer 1

volume = 4/3 x PI x r^3

v = 4/3 x 3.14 x 2^3

v = 33.49333

v = 33.5 cubic inches

Answer 2

Volume of a sphere = 4/3 pi r^3

so its  has a volume of (4/3) * 3.14 * 2*3  =  33.5 cubic inches ( to nearest tenth)