Polygons with equal area
1. Drag point B. What do you notice about the area of the polygon?
2. Drag point C. What polygons are formed? What can be said about its area?
3. Drag points C and D to form a pentagon.
What must be true about vertex A and vertex C that dragging them does not change the area of the polygons formed?
Erlina Ronda, http://math4teaching.com, Created with GeoGebra |