Question

What is the volume of a cone that has a height of 10 feet and a base with a diameter of 2 and half feet?

Answer 1

Volume of a cone: 1/3$\pi$r²h
r is the radius (diameter ÷ 2) and h is the height.

Find the radius first using the diameter: 2$\frac{1} {2}$ ÷ 2 = 1.25

Now plug in the numbers into the formula.

1/3$\pi$1.25²10 = 16.4

The volume of the cone is 16.4 cubic feet.