Question

The volume of a cone is 62.8 cubic inches. The height of the cone is 15 inches. What is the radius of the cone, rounded to the nearest inch? Use pi = 3.14
2 inches
4 inches
8 inches
9 inches

Answer 1

Recall the formula for volume of a cone:  V = (1/3)(base)(height).

Here the volume is V = 62.8 cu in. = (1/3)(pi* r^2)(15 in)
              
                   62.8 cu in      
or, r^2 = --------------------------  = 4 in^2
                (1/3)(3.14)(15 in)

Then the radius of the base is sqrt(4 in^2) = 2 in.

Answer 2

Answer: 2inches

Step-by-step explanation: