Individual: Ptolemy_Theorem

http://www.inter2geo.eu/2008/ontology/GeoSkills#Ptolemy_Theorem

Annotations

comment: "We mean that in a cyclic quadrilateral ABCD, AC * BD = AB * CD + BC * AD" (en)

Types

Theorem

Usage

Ptolemy_Theorem defaultCommonName "De stelling van Ptolemaeus" (nl)
Ptolemy_Theorem defaultCommonName "Der Satz von Ptolemäus" (de)
Ptolemy_Theorem defaultCommonName "Ptolemy's theorem" (en)