Geometry Problems, Online Education

Problem 722: Squares, Circumscribed Circles, Collinearity. High School, College

In the figure below, the squares ABCD and DEFG are inscribed in the circles O and O', respectively, Point E is on CD and circles O and O' intersect at H. Prove that A, E, H are collinear.
 

Squares, Circles, Collinear points
 

Home | Geometry | Search | Problems | Square | Circles | Intersecting Circles | Collinear Points | Open Problems | All Problems | Visual Index | 721-730 | Email | Post a solution/comment | By Antonio Gutierrez