Animation of Lines with Square and Rectangle

This example demonstrates how to dynamically generate perpendicular lines to y=x and y=-x using a slider 'c', and create points on these lines to form squares and rectangles. Core math concepts include coordinate geometry, line equations, symmetry, and geometric transformations. Key GeoGebra commands used are OrthogonalLine with objects like a, b, c, A, B, C, D. Suitable for high school mathematics teaching to understand geometric relationships and dynamic changes between lines and shapes.