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

Sadly, no ideas on this one.

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- March 10th 2010, 01:17 PMatreyyuQuadrilateral identity
In a convex quadrilateral , Bisectors of ABC and BAD meet at . Show that .

Sadly, no ideas on this one. - March 10th 2010, 11:28 PMearboth