Rectangle Area Inside a Circle

This example demonstrates the calculation of the area of a rectangle inside a circle. Key mathematical concepts include the properties of a circle, the formula for the area of a rectangle, and the application of the Pythagorean theorem. By constructing the four vertices of the rectangle and using GeoGebra commands such as Segment, the dynamic changes in the rectangle's area can be shown. Suitable for students at the junior high school level and above to learn geometry and algebra.