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# 10.8: Circumference

Difficulty Level: At Grade Created by: CK-12
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Practice Circumference
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### Vocabulary Language: English Spanish

chord

chord

A line segment whose endpoints are on a circle.
circumference

circumference

The distance around a circle.
diameter

diameter

A chord that passes through the center of the circle. The length of a diameter is two times the length of a radius.
pi

pi

(or $\pi$) The ratio of the circumference of a circle to its diameter.

## Date Created:

Jul 17, 2012

Dec 17, 2014
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