Explore the Properties of a Rectangle!

This GeoGebra example provides an interactive exploration of the fundamental properties of a rectangle. By dragging vertices, users can observe that opposite sides are parallel and equal, all four interior angles are right angles, and the diagonals are equal in length and bisect each other. The construction uses core commands such as Line, OrthogonalLine, Point, Intersect, and Segment to build the rectangle from basic geometric elements. Key mathematical concepts include quadrilateral classification, parallelism, perpendicularity, congruence, and the verification of geometric conjectures through dynamic manipulation. This resource is ideal for middle school geometry lessons, student-led discovery, or teacher demonstrations, fostering spatial reasoning and deductive thinking.