I would think you make your ruler a marked ruler with YZ and try verging. Does this work?
Can someone show me what to do here?
I'm given two circles (C1 and C2) and a line L. I need to find a line, which is parallel to L, such that the distance between the points where this line intersects C1 and C2 is equal to the length of a given segment (call it YZ).
Thanks for your help in advance.