Hinged triangles
We start with a tiling of triangles.
Drag B to open the empty spaces.
Form a tiling of green triangles and three-pointed stars.
For what range of angles will you get three-pointed stars?
Form a tiling of green triangles and big white triangles.
What angle will give you white equilateral triangles?
Form a tiling of green triangles and white hexagons.
What angle will give you regular hexagons?