Question
Download Solution PDFA, B and C are three points on a circle such that the angles subtended by the chord AB and AC at the centre O are 110° and 130°, respectively. The value of ∠BAC is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFfrom the following figure.
∠AOB = 110° and ∠AOC = 130°
As we know,
∠AOB + ∠AOC + ∠BOC = 360°
∠BOC = 360° - 110° - 130° = 120°
∠BAC = ∠BOC/2
∴ ∠BAC = 120°/2 = 60°
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