Question

what is the formula to find volume of five rupee's coin​

Answer 1

Recall the shape of the current five rupee coin

Explanation:

The current five rupee coin is in circular shape with a height.

So the coin is in a cylindrical shape with a circular base.

The formula to find the volume of a cylinder is $V=\pi r^2h$

Where $r$ is the radius of the circular base and $h$ is the height of the cylinder.

If the diameter is given, the formula can be rewritten as

$V=\frac{\pi d^2h}{4}$ since $r=\frac{d}{2}$

Answer 2

Given; Five rupees coin

To Find; The volume of the coin

Solution; A five rupees coin is circular having some height. A circular shape having some height is known as a cylinder. So the area of a coin can be considered as the volume of the cylinder.

Let the radius of the coin be r and height be h then the volume is

πr²h

Hence that volume is πr²h