Re: Re: Three Concurrent Lines in a Circle.
- Antreas quoted:
> Bankoff, Leon - Erdos, Paul - Klamkin, Murray: The Asymmetric Propeller.Which according to ZfM, the paper seems to provide two proofs of the
> Mathematics Magazine 46 (1973) 270-272.
If OAB, OCD and OEF are equilateral triangles of the same
orientation then the midpoints of BC, DE and FA are the
vertices of an equilateral triangle.