Inscribed circle

Calculate the magnitude of the BAC angle in triangle ABC if it is three times less than the angle BOC, where O is the center of the circle inscribed in triangle ABC.

Correct answer:

A =  36 °

Step-by-step explanation:

A+B+C=180 A = O/3 C/2+O+B/2 = 180 C/2+P+A/2 = 180 B/2+Q+A/2 = 180 B = rand(1120)  O=108  A=O/3=108/3=36



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