SSC CHSL 2019 PYQ — Question 63

SSC CHSL - 4th July 2019 - Shift 3 • Quantitative Aptitude • Q63

In a ΔABC, the bisectors of ∠B and ∠C meet at point O within the triangle. If ∠BOC is given, then which among the given options is true?

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. ∠A = 2 (∠BOC - 90°)

Concept

Application

With the property of angle bisectors:

∠BOC = 90° + A/2

∠BOC = 90° + A/2

⇒∠A = 2 (∠BOC - 90°)

Hence, option 1 is correct.