I'm glad it isn't just me. I got kinda close. Thank you for this example.
I hope you have time to make it dynamic. I will work on fusing my close attempt with Kyatric's in the mean time.
I tried creating a right triangle so I could fuse two right triangles into a equilateral triangle, but that was glitchy.
I also had a point that the square would follow appear and used Move To command, but then when I moved the center it fell off the path even though it made a triangle standing still.
When this problem is solved I would love to put the circle, square, and triangle examples that behave the way we are aiming for relative to the center in a tutorial or frequently asked questions!