Question

A cone has a diameter of 6 centimeters and a height that is 5 times the diameter. Using 3.14 for pi, which of the following can be used to calculate the volume of the cone?

Answer 1

Volume of Cone = pi x r^2 x h/3, where pi=3.14, radius= diameter/2 = 6/3, h=height = 5x6 = 30
so Volume of the cone is = 3.14 x 2x2 x 30/10 = 3.14 x 4 x 3 = 37.68 cubic centimeters 

Answer 2

To calculate the Volume of a sphere we use =$\frac{1}{3} \pi r^{2} h$i
in  this question our radius is 6cm and height is 30cm therefore the volume will be :-
     (1/3)\pi *(6)^{2}*30
Answer= 360 cm^{3}