Hi !

http://img204.imageshack.us/img204/1228/sanstitrehc.png

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- Jan 30th 2010, 04:47 PMPerelmanHelp Géo !!
- Jan 30th 2010, 05:12 PMHenryt999hint
Ops menth CDB

- Jan 30th 2010, 06:18 PMKrizalid
That's false.

is actually equilateral, thus On the other hand we have that is also equilateral, then hence

Finally which implies that and are collinear. - Jan 30th 2010, 07:03 PMWilmer