of
Markus Heisss
Würzburg, Bavaria
2020/2022 (Last update: Dec. 17, 2022)
Further Fascinating Relationships
to the
Lune of Hippocrates
... to the Website?
[here]
Frégier's Theorem
Arbelos
Fermat Points
Circle through O, N and K
Cyclic Quadrilateral
and its Tangential Quadrilateral
Medial Triangle
Excircles and Incircle
A Relationship at the
Rectangular Triangle