Question

A cone has a volume of 314 cubic millimeters and a height of 12 millimeters. What is its

radius?
Use 3.14 and round your answer to the nearest hundredth.

Answer 1

5mm

Explanation:

using the formula of volume of cone i.e. 1/3 ×πr²h

1/3 × πr²h = 314

or, r²= (314×3)/ (π×h)

or, r² = 25

r= 5 mm