Question

Find the volume of a right circular cone that has a height of 3.9ft and a base with a radius of 14.7ft. Round your answer to the nearest tenth of a cubic foot

Answer 1

882.1 ft^3

Explanation:

V = 1 /3π r^2h

We have our values for the radius and the height.

r = 14.7ft

h = 3.9ft

So, now we can plug it into the equation.

V = 1/3π(14.7^2)3.9

First, solve the parentheses.

14.7^2 = 216.09

Then, multiply by 3.9.

216.09 x 3.9 = 842.751

Next, multiply 842.751 and 3.14.

842.751 x 3.14 = 2646.23814

Lastly, multiply by 1/3.

2646.23814 x 1/3 = 882.07938

Round to nearest tenth of a cubic foot.

882.07938 --> 882.1