Question

Let ABCD is a parallelogram if angle A = 60 degree then find angle D + angle B

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Answer 1

Answer:

Solution

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∠A=60

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In parallelogram Opposite angles are equal .

So ∠C=60

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In parallelogram adjacent sides sum up to give 180

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So ∠A+∠D=180

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∠D=180−60=120

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So ∠A+∠B=180

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∠B=180−60=120

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