查看“︁皮托定理”︁的源代码

{{Expand language|1=en|time=2024-09-14T10:15:47+00:00}}
[[File:Tangentenabschnitte.svg|right|thumb|upright=0.8|切线基本性质：<math>|PA| = |PB|</math>]]
[[File:Pitot theorem.svg|thumb|right|upright=1.1|<math>\begin{align}&|AB| + |CD|\\ =&(a+b)+(c+d)\\=&(b+c)+(a+d)\\=&|BC| + |DA| \end{align}</math>]]
'''{{PAGENAME}}'''（{{lang-en|Pitot theorem}}）是指[[圆外切四边形]]的对边和相等，以法国工程师[[亨利·皮托]]（Henri Pitot）的姓氏命名<ref>{{citation
 | last = Pritsker | first = Boris
 | title = Geometrical Kaleidoscope
 | publisher = [[Dover Publications]]
 | year = 2017
 | isbn = 9780486812410
 | page = 51
 | url = https://books.google.com/books?id=Dm8vDwAAQBAJ&pg=PA51
}}.</ref>。

==参考文献==
{{reflist}}

==外部链接==
*[http://www.cut-the-knot.org/proofs/InscriptibleQuadrilateral.shtml#anotherProof  Alexander Bogomolny, "When A Quadrilateral Is Inscriptible?" at Cut-the-knot] {{Wayback|url=http://www.cut-the-knot.org/proofs/InscriptibleQuadrilateral.shtml#anotherProof |date=20151222150030 }}
*[http://dynamicmathematicslearning.com/circumhex-turnbull-dual.html  "A generalization of Pitot's theorem"] {{Wayback|url=http://dynamicmathematicslearning.com/circumhex-turnbull-dual.html |date=20240625042128 }}

[[Category:四邊形]]