More ideas from
matthen: For any triangle, you can draw a circle that fits perfectly inside (the incircle) and also one that connects all its corners (the circumcircle). This shows the path of the centre of the incircle, as a triangle is shuffled around its circumcircle. [code]

matthen: “ For any triangle, you can draw a circle that fits perfectly inside (the incircle) and also one that connects all its corners (the circumcircle). This shows the path of the centre of the incircle, as a triangle is shuffled around its.