JAVA worksheet

The diagram shows a GREY triangle ABC with an identical BLUE triangle on top.
Carefully DRAG a vertex of the BLUE triangle - can you leave the area unchanged?
Click the RESET button (top-right) to start again. This is a Java Applet created using GeoGebra from www.geogebra.org - it looks like you don't have Java installed, please go to www.java.com Use the CHECK-BOXES to hide the AREA values
and to help you access and change the GREY triangle if you want to modify the task.

Created with GeoGebra