What Are the Characteristics of Parallelograms?

2016-10-11 13:07
This GeoGebra applet, created by Chi Ming Ko (GeoGebra Academy, Hong Kong), explores the fundamental geometric properties of parallelograms. Using commands such as Midpoint, Rotate, Polygon, and Angle, the construction dynamically illustrates key characteristics: opposite sides are parallel and equal in length, opposite angles are equal, consecutive angles are supplementary, and diagonals bisect e