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If A , B, C are three points on a circle with centre O such that ∠AOB = 90° and ∠BOC = 120°, then ∠ABC =(a) 60°(b) 75°(c) 90°(d) 135° |
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Answer» If A , B, C are three points on a circle with centre O such that ∠AOB = 90° and ∠BOC = 120°, then ∠ABC = (a) 60° (b) 75° (c) 90° (d) 135° |
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