Butterfly theorem
From Biocrawler, the free encyclopedia.
Butterfly theorem is a classical result in Euclidean geometry, it can be stated as follows:
Let M be the midpoint of a chord PQ of a circle, through which two other chords AB and CD are drawn; AD and BC intersect chord PQ at X and Y correspondingly. Then M is the midpoint of XY.
 | This geometry-related article is a stub. You can help Biocrawler by expanding it (http://www.biocrawler.com/w/index.php?title=Butterfly_theorem&action=edit). |
