In a triangle ABC, incentre is O and ∠BOC = 110°, then the measure of ∠BAC is:

A. 20°

B. 40°

C. 55°

D. 110°

Answer: Option B

Solution(By Examveda Team)

According to question,
Given : ∠BOC = 110°
∠BOC = 90° + $$\frac{1}{2}$$ ∠A

110° = 90° + $$\frac{{\angle A}}{2}$$
$$\frac{{\angle A}}{2}$$ = 20
∠A = 40°