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  • The '''inradius''' of a [[polygon]] is the [[radius]] of its [[incircle]] (assuming an incircle exists). It i ...dentity <math>\cos{A}+\cos{B}+\cos{C}=\frac{r+R}{R}</math> (see [[Carnot's Theorem]]).
    2 KB (321 words) - 21:54, 20 June 2024
  • '''Carnot's Theorem''' states that in a [[triangle]] <math>ABC</math>, the signed sum of [[perp Weisstein, Eric W. "Carnot's Theorem." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/Carn
    4 KB (723 words) - 00:45, 18 February 2021