Hypothesis: AC = CB DE is the diameter CH is perpendicular to AB (the altitude) Thesis: DE : BC = BC : CH (BC^2 = DE * CH)
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Originally Posted by goby Hypothesis: AC = CB DE is the diameter CH is perpendicular to AB (the altitude) Thesis: DE : BC = BC : CH (BC^2 = DE * CH) (Circumradius - AoPSWiki)
Okay, I understood it, but what's the proof for R = ?
Originally Posted by goby Okay, I understood it, but what's the proof for R = ? Area of a Triangle in Terms of Circumradius - ProofWiki
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