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#1 2007-12-04 09:50:54
- tony123
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- Registered: 2007-08-03
- Posts: 229
hard
If
andare lengths of a triangle such that
Prove that
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#2 2007-12-04 11:47:19
- JaneFairfax
- Member
- Registered: 2007-02-23
- Posts: 6,868
Re: hard
Well, we just have to use Herons formula for the area of a triangle, dont we? The area S is
Since 16S[sup]2[/sup] must be > 0, put that in, and after some re-arranging youll get the required inequality.
Last edited by JaneFairfax (2007-12-04 11:48:07)
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