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How to solve this???
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How to solve this???

How to solve this???-example-1
User Andrey
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11. Opposite angles of a cyclic quadrilateral are supplementary. You have two angles in the ratio of 2:4 that add to 180°. The larger angle will be 4/(2+4) = 4/6 of 180°, so is 120°.
User SemanticBeeng
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