Math, asked by Starrryyyy, 1 year ago

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Answered by priyanshi717
1

Step-by-step explanation:

3b+b=180°

4b=180°

b=45°

b and a are vertically opposite angles therefore a=b

Therefore a=45°

Answered by Ïmpøstër
1

Step-by-step explanation:

hope you will understand

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