David Little
Mathematics Department
Penn State University
Eberly College of Science
University Park, PA 16802
Office: 403 McAllister
Phone: (814) 865-3329
Fax: (814) 865-3735

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The Circumference of a Circle

The following applet can be used to approximate the circumference of a unit circle by using regular polygons. The user may select between either inscribed or circumscribed polygons to approximate the circumference of the circle. The applet can also be used to graph the sequences of circumferences.

Simply select the value of n and the applet automatically draws the appropriate regular n-sided polygon and displays the perimeter of the polygon.

© 2010 David P. Little
Download this applet for off-line viewing (includes source code). The above applet uses the Java Math Expression Parser (JEP) developed by Singular Systems