Pythagorean Theorem and Ptolemy's Theorem Geometric Construction

This example demonstrates how to construct a cyclic quadrilateral using Ptolemy's theorem and relate it to the Pythagorean theorem. Key mathematical concepts include circle properties, triangle angle sum theorem, and geometric construction techniques. Construction involves GeoGebra commands such as Circle, Point, AngularBisector, etc. Suitable for middle school students or high school students learning geometry, or for math teaching demonstrations.