< PREVIOUS PROBLEM | NEXT PROBLEM >

The figure below shows a triangle ABC with angle B = 60 degrees, orthocenter H, circumcenter O, and AH - CH =12. Find the distance from O to AH.

See also: Art of problem 1312

Home | Geometry | Problems | All Problems | Open Problems | Visual Index | 1311-1320 | Triangle | Circle | Circumcenter | Orthocenter | Altitude | Perpendicular line | View or Post a solution | by Antonio Gutierrez