perplexus.info :: Just Math : Given Ratio, Find Sum

Given Ratio, Find Sum (Posted on 2008-01-21)

For a triangle ABC, Area/R=4. Find acosA+bcosB+ccosC.
Note:R is circumradius of triangle ABC.

See The Solution Submitted by Praneeth

Rating: 4.0000 (1 votes)

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Subject	Author	Date
Answer	K Sengupta	2008-10-26 01:09:59
re(2): Solution	Bractals	2008-01-22 15:10:46
re: Solution	Praneeth	2008-01-22 01:29:02
Solution	Bractals	2008-01-21 11:57:33
Playing around with Geometer's Sketchpad (spoiler)	Charlie	2008-01-21 11:53:58

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