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Radius and Altitudes (Posted on 2020-05-08) Difficulty: 3 of 5
Prove the following theorem:
The radius r of the circle inscribed in any triangle, say ABC ,
equals 1/3 of the harmonic average of the 3 altitudes,
1/r = 1/h(A)+1/h(B)+1/h(C)

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
re: Solution with explanationJason Booza2020-05-26 15:19:14
Solution with explanationFrankM2020-05-09 20:47:46
solution and correctionxdog2020-05-08 08:52:40
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