Create Rectangle Equation

This example demonstrates how to create the equation of a rectangle using GeoGebra. The core math concepts involved include coordinate geometry, equation solving, and geometric construction. Key GeoGebra commands and objects used are Intersect, Point, and various points and parameters like A, B, a, h, k, c, pic1, C, d, D, text1, e. It is suitable for high school mathematics teaching, helping students understand how to construct algebraic equations from geometric elements.