__What is a sphere?__

A sphere is a three-dimensional object that is round like a ball and every point on the surface is equidistant (equal distance) from the center.

__Three real world examples of a sphere:__

1.) A basketball

2.) A volleyball

3.) Earth

__What are some characteristics of a sphere?__

- One curved surface; round
- Perfectly symmetrical
- All points from the surface of the circle to the center are equal in length

__How do I label a sphere?__

__What is the formula used to calculate the volume of a sphere?__

__Example of how to calculate the volume of a sphere__

__Practice! Calculate the volume of the following sphere:__

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(C) 2017 MATH IN DEMAND