JAVA worksheet B

Use the RESET button (top-right) to go back to START. This is a Java Applet created using GeoGebra from - it looks like you don't have Java installed, please go to
Use the RUN/PAUSE button (bottom-left) to RUN the animation.
When the animation has finished,
RESET, carefully pick-up and DRAG point A, D or E to a new position, RUN the animation again;
OR: don't RESET but DRAG point A, D or E. Will the triangles still match up?

Created with GeoGebra