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Old 2006-11-02, 17:38   #10
fetofs
 
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Aug 2005
Brazil

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Quote:
Originally Posted by mfgoode View Post
In triangle AHC , R and N are midpoints.
Therefore RH is // to HC
A typo, perhaps? RH and HC should make an X, unless I miss something.

P.S: A clearer drawing could've helped me see some things. The triangle AMN is similar to triangle ABC, in the sense that is only scaled down. AM/2 = AB, MN/2 = BC and AN = AC/2, therefore their angles are equal.

Last fiddled with by fetofs on 2006-11-02 at 17:44
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