Exploring Special Properties of Rectangle Diagonals

This example demonstrates how students can move the vertices of a quadrilateral to make the diagonals congruent, perpendicular, and bisect each other, thereby discovering the special properties of a rectangle. The core math concepts involved include geometric construction, diagonal properties, and quadrilateral classification. The construction uses commands/objects like Segment, Intersect, and Angle from GeoGebra. Suitable for middle school and above students for exploratory geometry learning and discovery.