Posted by andrew on Tuesday, May 28, 2013 at 4:52am.
In triangle ABC, points D,E,F are on sides BC,CA,AB respectively such that AD,BE,CF are angle bisectors of triangle ABC. The lines AD,BE,CF are concurrent at I, the incenter of triangle ABC. If ∠BAC=92∘, what is the measure (in degrees) of ∠EIF?

heeeeeeeeeeeeeeeeeeeelp maths  ssrfs, Saturday, June 1, 2013 at 6:17am
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