As in the figure,

are tangency to both and with the point of tangency to them and are on . Show that is the incentre of

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- Jan 11th 2011, 06:09 PMelimInscribed circle center problem
As in the figure,

are tangency to both and with the point of tangency to them and are on . Show that is the incentre of - Jan 18th 2011, 01:01 PMelim
I can prove that if then we are done. But how to show that these two angles are actually equal?

- Jan 22nd 2011, 07:41 AMelim