Question

In this figure AB||CD.Find the value of y.
The answer will be 3.I only want step by step explanation. ​

Answer 1

Answer:

[y-5°]+[2y-4°]=180°      {co-interior angles}

y-5°+2y-4°=180°

2y+y-5°-4°=180°

3y-9°=180°

3y=180°+9°

3y=189°

y=189°/3

y=63°

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