Circle Definitions

Date: 04/29/2002 at 14:02:52
From: Katie Troutman
Subject: Circles

Define a circle and its parts: diameter, radius, center, 
circumference.

Date: 04/29/2002 at 14:17:40
From: Doctor Sarah
Subject: Re: Circles

Hi Katie - thanks for writing to Dr. Math.

The center of a circle is the same distance from all points on the 
circle and is the intersection of any two different diameters.

From the Harcourt Multimedia Math Glossary:

   http://www.harcourtschool.com/glossary/math_advantage/glossary5.html

A circle is a closed figure with all points on the figure the same 
distance from the center point.

The diameter is a line segment that passes through the center of a 
circle and has its endpoints on the circle.

The radius is a line segment with one endpoint at the center of a 
circle and the other endpoint on the circle.

The circumference is the perimeter of a circle.

A chord is a line segment with endpoints on a circle.

- Doctor Sarah, The Math Forum
  http://mathforum.org/dr.math/