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Derivation of the law of cosines via the incircle (Q2871647)

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scientific article; zbMATH DE number 6243730
Language Label Description Also known as
English
Derivation of the law of cosines via the incircle
scientific article; zbMATH DE number 6243730

    Statements

    author
    Larry Hoehn
    0 references
    publication date
    9 January 2014
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    zbMATH Keywords
    law of cosines
    0 references
    title
    Derivation of the law of cosines via the incircle (English)
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    review text
    In this article the authors derive the famous law of cosines without using special cases and without using the Pythagorean theorem deriving a formula by equating independent expressions for the radius \(r\) of the incircle of the given triangle.
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    Identifiers

    zbMATH DE Number
    6243730
    0 references
     
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