
How to construct a "twopoints" circle, passing through the two endpoints of a given centerline?

1. 
 Determine the endpoints and draw the centerline.


2. 
 Construct the perpendicular bisector of centerline 1.


3. 
 Construct a circle centered at the intersection of centerline 1 and line 2, passing through one of the endpoints.


4. 
 Circle 3 is the circle to be constructed, it has the defined centerline, and passes through the two endpoints.

