Keywords: PDNTheoremForQuadrilateralCase2.svg Diagram illustrating Petr-Doglas-Neumann theorem as applied to a quadrilateral I Krishnachandranvn talk created this work entirely by myself 13 53 8 May 2012 UTC Krishnachandranvn talk Krishnachandranvn wikipedia en Cc-zero Original upload log en wikipedia PDNTheoremForQuadrilateralCase2 svg wikitable - 2012-05-08 14 24 591×382× 37958 bytes Krishnachandranvn A few changes in notations only - 2012-05-08 13 53 574×383× 35618 bytes Krishnachandranvn Diagram illustrating Petr-Doglas-Neumann theorem as applied to a quadrilateral I ~~~ created this work entirely by myself ~~~~~ ~~~ Uncategorized 2016 May 6 |