So my skallops arrived and I’ve had some time to play with them. Geometry teacher’s dream.
Ok.
Will the following setup make a polygon if I keep the same angle and keep adding on?

What about 30 degrees? 45, 60, 75, 90, 105, 120, 135, 150, 165, or 180 degrees?
Some completed shapes:
And
Enjoy. 3D stuff to follow sometime this summer.