?
If I be the incentre of ΔABC and ∠B = 70° and ∠C = 50°, then the magnitude of ∠BIC is
Answer & Solution
Correct 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°
As we know that
∠A + ∠B + ∠C = 180°
∴ ∠A = 180° -70° - 50°
∠A = 60°
∴ ∠BIC = 90° + $$\frac{1}{2}$$ × 60°
∠BIC = 120°
Join the Discussion
Login to post a comment or share your explanation.
Login