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Find *m*∠C in the following figure if `bar(AB) || bar(DC)`

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#### Solution

Given that, `bar(AB) || bar(DC)`

∠B + ∠C = 180° (Angles on the same side of transversal)

120º + ∠C = 180°

∠C= 180° - 120° = 60

∠C = 60°

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