# What is a hemisphere in geometry? Definition and examples

A hemisphere is a three-dimensional geometric shape that is equal to half of a sphere.

## Real-life examples of hemispheres

The earth can be divided into the Northern Hemisphere and the Southern Hemisphere.

The earth can also be divided into the Eastern Hemisphere and the Western Hemisphere.

Half of a basketball, half of a tennis ball, and half of a marble are all examples of hemispheres.

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