Question

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in full method​

Answer 1

Answer:

Step-by-step explanation:

Given a parallelogram ABCD in which

∠ B - ∠ A = 40° --------------------(1).

But, we know adjacent angles in a parallelogram are supplementary

Hence, ∠ B + ∠ A = 180° -------(2)

From (1) and (2) , we get

∠ B = 110° and  ∠ A = 70°.

Also, we know that opposite angles in a parallelogram are equal.

Hence, ∠ C = ∠ A = 70° and

∠ D = ∠ B = 110°

Thus the angles of parallelogram in order are 110°, 70°, 110°, 70°.

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