Home Geometry Problems 71-80 Common Chord Parallel Chords View or post a solution   
Problem 72. Intersecting Circles, Common Chord, Cyclic Quadrilateral, Angles, Parallel. Level: High School, SAT Prep, College geometry.

In the figure below, the circles O and Q intersect at C an D. BF is a line through C and AE is a line through D. Prove that lines AB and EF are parallel.
 

 
 

 
  Recent Additions