Answer:
The volume of the come is 4713cm^3
Explanation:
Volume of a cone = 3πr^2h
π - 3.142 ( it is a constant)
r - radius of the base of a cone
h - height of a cone
We are given
h - 20
Instead of radius, we are given a diameter
Diameter = radius * 2
Or radius = diameter /2
Diameter = 10
r = 10/2
r = 5
Insert those values inside the formula
h - 20
r - 5
π - 3.142
Vol of a cone= 3 * 3.142 * 5^2 * 20
= 3 * 3.142 * 25 * 20
= 4713cm^3
Hint : volume is always in power of 3 ie. ^3
Area is ^2