Incenter of ΔABC is I. ∠ABC = 90° and ∠ACB = 70°. ∠BIC is:
A. 115°
B. 100°
C. 110°
D. 105°
Answer: Option B
Solution(By Examveda Team)
∵ Sum of all angles of a triangle = 180°So, ∠BAC = 180 - (90 + 70)
∠BAC = 20°
So, ∠BIC = 90 + $$\frac{1}{2}$$ ∠A
∠BIC = 90° + $$\frac{1}{2}$$ × 20°
∠BIC = 100°
Related Questions on Triangles
If ABC and PQR are similar triangles in which ∠A = 47° and ∠Q = 83°, then ∠C is:
A. 50°
B. 70°
C. 60°
D. 80°
In the following figure which of the following statements is true?
A. AB = BD
B. AC = CD
C. BC + CD
D. AD < Cd
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