Question

plz ans
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Answer 1

Step-by-step explanation:

answered above

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Answer 2

Step-by-step explanation:

<d=100°, as vert. opp. angles.

<d=<b, as corr. angles. So, <b=100°.

<a=180-100, as <a, and, <b, r co interior

angles.So, <a=80°.

<c=180°-80°, as, <a, and, <c, r co intrerior

angles.

So, <c=100°.

<a=80°, <d=100°, <b=100°, <c=100°!!!

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