ABC is a triangle inscribed in a circle with centre O. Let = BAC, where 45^ < <90^ . Let = BOC. Which one of the following is correct?

NDA 2018 Mathematics question

ABC is a triangle inscribed in a circle with centre O. Let , where . Let . Which one of the following is correct?

Answer: (A)

The angle subtended by chord BC at the centre is twice the angle it subtends at the

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Question ID VK-028853