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In triangle ABC, BAC = 78 degrees and ACB = 33 degrees. The incircle of triangle ABC touches sides BC, AC, and AB at D, E, and F, respectively. Find EFD in degrees.

 Jun 13, 2021
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Angle EFD = 180 - [1/2(180-69) + 1/2(180-78)]

 Jun 13, 2021

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