In this diagram, the points with a green dot are known and the red ones unknown. Could someone explain what formula I need to determine the red dotted points?
Hi Ahh, so the technique is to use pythagoras - I should have thought of that! I have extended the formula to deal with the fact that the origin (a,b) of my circles are not 0,0 so to get the y coord for my point C I am using: y = b +/- sqrt{r^2 - (L-K)^2} (where points on my circle diagram a...