Kairay created a sculpture by forming a hemisphere with a radius of 20 inches and then removing a hemisphere with a radius of 15 inches fr Calculate the volume of his sculpture. Use 3.14 as an approximation for pi. Round your answer to the nearest whole number (1 point)
The volume of a hemisphere can be calculated using the formula V = (2/3)πr^3, where r is the radius.
For the larger hemisphere with a radius of 20 inches, the volume is V1 = (2/3) * 3.14 * 20^3 = 33584 cubic inches.
For the smaller hemisphere with a radius of 15 inches, the volume is V2 = (2/3) * 3.14 * 15^3 = 8465 cubic inches.
To find the volume of the sculpture, we need to subtract V2 from V1: V = V1 - V2 = 33584 - 8465 = 25119 cubic inches.
Rounded to the nearest whole number, the volume of the sculpture is 25119 cubic inches.