Interactive resource
Rectangle, rhombus, square
Geometry. Compare side, angle, and diagonal features of special parallelograms. Free interactive GeoGebra resource — adjust parameters in the browser.
Overview
Compare side, angle, and diagonal features of special parallelograms.
Explanation
Rectangle: a parallelogram with a right angle → four right angles, equal diagonals.
Rhombus: a parallelogram with a pair of adjacent equal sides → all sides equal, perpendicular diagonals.
Square: both a rectangle and a rhombus — all of the above.
How to use
Switch shapes and adjust available side/angle sliders; focus on the diagonals.