Circumference of a Circle Given Chord Length

Date: 9/11/96 at 5:9:26
From: Media Centre
Subject: Chord Length, Circumference of a Circle

Given the length of a chord of a circle, is it possible to determine 
the circumference?

Date: 9/11/96 at 12:18:29
From: Doctor Jerry
Subject: Re: Chord Length, Circumference of a Circle

The length of a chord is not sufficient to calculate the 
circumference.  The reason is that the same chord can be a chord in 
circles of different radii (and, so, different circumferences).  For 
example, one meter line segment is a chord in any sufficiently large 
circle.

-Doctor Jerry,  The Math Forum
 Check out our web site!  http://mathforum.org/dr.math/