Summarizes an old problem from the field of geometric probability about estimating pi by dropping a needle on a lined sheet of paper.

Examine this historical copy of the "Elements of Euclid" from the library of the University of British Columbia. Includes links to related sites.

Read an article featuring methods for finding all the circles tangent to three given circles and all the spheres tangent to three given spheres.

Features the complete text of "Euclid's Elements." Includes definitions for the basic tenets of geometry and related propositions.

Investigate this geometry project that uses available software to provide a hands-on approach to math for students. Includes one lesson plan.

Presents Books I through VI, dealing with plane geometry, come complete with demonstrations written in Java.

Find a guide to understanding geometry in space and time. Includes an overview of Euclids postulates.