Theorem of the Day Glossary icon

Java applet illustrating Pappus' Theorem

interactive Pappus configuration
The above applet, created using David Joyce's Geometry Applet software, shows Pappus' Theorem in action. Click on one of the end points (A, C, a or c) and drag the point to move the whole diagram, including the points of intersection X, Y and Z of the line pairs.


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