Question

If one of the angles of a parallelogram ABCD is 60◦, what are the measures of the remaining angles?

Answer 1

Step-by-step explanation:

please refer the attachment for the answer

Answer 2

Answer:

Given : ABCD is a parallelogram and ∠A=60

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Solution :

We know that opposites angles of a parallelogram are equal.

Therefore,

∠A=∠C=60

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Also, we know that ∠A+∠B=180

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60

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+∠B=180

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∠B=120

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∠B=∠D=120

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(opposite angles of parallelogram)