Q68. In a triangle ABC, I is the in-center. If BAC = 35° then find BIC = ?
(a) 70°
(b) 72.5°
(c) 107.5°
(d) 13

1 thought on “Q68. In a triangle ABC, I is the in-center. If BAC = 35° then find BIC = ?<br />(a) 70°<br />(b) 72.5°<br />(c) 107.5°<br />(d) 13”

1. Answer:

   a. 70°

   here I is the centre of the triangle so we can say that I is the centre of the circle passing through A,B,C thus BC is a chord here which subtends 35° at the boundary of the circle so it will subtend double angle at the centre

   Step-by-step explanation:

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