## âœ…What is Hemisphere ?

A hemisphere is a three-dimensional shape that is formed by slicing a
sphere in half along its equator. It is a half-sphere, meaning it has a curved
surface that is exactly half of a sphere. The word "hemi" means half, so a
hemisphere is literally "half a sphere".

## âœ…Volume of a hemisphere:

**ðŸ‘‰Formula**: V = (2/3)Ï€rÂ³

Where r is the radius of the hemisphere.

**ðŸ‘‰Example**: If the hemisphere has a radius of 7 cm, then the volume would be V = (2/3)Ï€(7 cm)Â³ = 718.81 cubic centimeters.

## âœ…Surface area of a hemisphere:

**ðŸ‘‰Formula**: A = 2Ï€rÂ²

Where r is the radius of the hemisphere.

**ðŸ‘‰Example**: If the hemisphere has a radius of 7 cm, then the surface area would be A = 2Ï€(7 cm)Â² = 307.86 square centimeters.