triangle fold
This is a triangle folding activity.
A and B are movable points. You can make a fold by dragging point C. Turn off the grid if needed.
What tasks or questions will you try for exploring properties of a triangle?
How about trying these:
- make a fold to:
- does the angle bisector of A bisect BC? when?
- show that longer side is opposite to greater angle
- cover point A, drag B to make angles B and C almost equal, fold C to B and compare the angles in order to tell which opposite side is longer