# Angles of a Triangle: Conjectures and Investigation

Hi all!
Please use the following applet to investigate your conjectures about angles of triangles. The only points that move are E, F and G. As the points move, please notice how the figure changes. Please use your guided questions to investigate your conjectures.
The only catch with the applet is that you may only move E between A and B and points F and G must stay between H and D. Otherwise, as you can try, you will get angles that are larger than 180 degrees, which we don't want to use. It would also be beneficial to know that lines AB and HD are parallel.
As always, please ask if you have questions! Enjoy!

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