Ptolemaios tétele

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Ptolemaios tétele szerint a körbe beirt négyszögben az átlók szorzata egyenlő az egymással átellenes oldalak szorzatainak összegével. Tehát ábránkban az ABCD négyszögben: AC.BD = AB.CD + BC.DA.

 

 

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Arcanum Newspapers

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See what the newspapers have said about this subject in the last 250 years!

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