Drawing Quadrilaterals on Grid Paper and Pinboard

2012-10-30 07:58
This GeoGebra example demonstrates how to construct various quadrilaterals on grid paper or a pinboard. Using commands such as Sequence, Polygon, Rotate, and GCD, it dynamically generates quadrilaterals and automatically annotates their geometric properties: equal sides shown in the same color, right angles and equal angles marked, and parallel sides indicated. Adjustable width and height paramete