In a convex quadrilateral , Bisectors of ABC and BAD meet at . Show that .

Sadly, no ideas on this one.

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- Mar 10th 2010, 02:17 PMatreyyuQuadrilateral identity
In a convex quadrilateral , Bisectors of ABC and BAD meet at . Show that .

Sadly, no ideas on this one. - Mar 11th 2010, 12:28 AMearboth