The angle bisectors of ΔABC converge at the incenter I. Given that the measure of ∠BIC is 125°, what is the measure of ∠BAC?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 70°.
∠BIC = 125°, I is incenter.
∠BIC = 90° + ∠A/2
⇒ 125° = 90° + A/2
⇒ A/2 = 35°
⇒ ∠A = 70°