Question
If I be the incentre of ΔABC and ∠B = 70° and ∠C = 50°, then the magnitude of ∠BIC is
Answer: Option C
According to question,
As we know that
  ∠A + ∠B + ∠C = 180°
∴ ∠A = 180° -70° - 50°
  ∠A = 60°
∴ ∠BIC = 90° + $$\frac{1}{2}$$ × 60°
  ∠BIC = 120°
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According to question,
As we know that
  ∠A + ∠B + ∠C = 180°
∴ ∠A = 180° -70° - 50°
  ∠A = 60°
∴ ∠BIC = 90° + $$\frac{1}{2}$$ × 60°
  ∠BIC = 120°
Was this answer helpful ?
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