I made this for my students to explore the dihedral group. You control the polygon on the left. In explore mode move around the polygon with r and s, e->g and h-> g moves the right polygon to match the one on the left from the base position and current position respectively. For match you need to match the polygon on the right. In beginner make one move at a time. For advanced you need to enter all your moves at the start first.
This was inspired by the project https://scratch.mit.edu/projects/238216630 which is another very nice dihedral group project. I used the @thelogfather triangle filler. https://scratch.mit.edu/projects/24828481/
