Question

Find the volume of the hemisphere. Round to the nearest tenth.
6.7 ft
cubic feet

Answer 1

78.7 cubic feet

Explanation:

Remember that a hemisphere is half of a sphere, so finding the volume of a hemisphere is really just finding half of the volume of a sphere.

Volume of sphere = (4 * π / 3) * r ^ 3 , where r = diameter / 2.

So, volume of hemisphere = volume of sphere / 2 .

Volume of sphere = (4 * π / 3) * (6.7 / 2) ^ 3 = 157.47914.....

Volume of hemisphere = 157.47914....... / 2 = 78.7396..........

So it would approximately be 78.7 cubic feet