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Two lines AB and CD intersect at O. If ∠AOC + ∠COB + ∠BOD = 270°, then ∠AOC =(a) 70°(b) 80°(c) 90°(d) 180° |
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Answer» Two lines AB and CD intersect at O. If ∠AOC + ∠COB + ∠BOD = 270°, then ∠AOC = (a) 70° (b) 80° (c) 90° (d) 180° |
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