• Nick Halsey uploaded a new app: Tridecagon Diagonal… 7 years, 3 months ago

    You’ll want to start out with the heptagon and work your way up. This one’s the same as all the others, just with a 13-sided regular polygon. Observe the tangencies to diagonals of circles centered at intersections of diagonals, when the circles are resized (by dragging).

    This is a smaller version that works well on most monitors (zoom in with two-finger touch). B…