Monge's Theorem states that "for any 3 circles in a plane, the intersection points of each of the three pairs of external tangent lines are collinear". This project explains what this means and provides a simulation to share this phenomenon! With all of the calculations and circle drawing, the project can end up a little laggy, so when moving the dots to adjust the circles, move them slowly. I recommend not using full screen. Click space to change the background color between white and black Click r to reset the position of the circles When the position of the circles are invalid, the algorithm to find the lines breaks: the lines do not make sense.
