hinged equilateral triangles and circumcircles
- Author:
- Arthur Lee
- Topic:
- Equilateral Triangles, Triangles
Two equilateral triangles share a vertex A. Their circumcircles meet at A and another point F.
Are the points C, D, F collinear?
How about B, E, F?
Drag the free points to see whether their relations change or not.
Can you explain the observed relations?