Playing with Intersecting Circles


Discover the fundamentals of plane shapes through the traditional artisan’s seven-circle construction.


Pre-Industrial Age architect/builders layed out buildings–from barns to cathedrals–using the inherent shapes and proportional relationships embedded in the geometric constructions of same-ratio circles.

In this guide we’re going to simply play with these intersecting circle constructions and see what shows up! Hint: We’ll discover/uncover an almost infinite array of regular polygons in the seven-circle construction that beg to be colored in with crayons. We’ll also see a protractor show up.