Question

Need some help please

Answer 1

Explanation:

∠2 = 77°

∠2 = ∠4 ( being vertically opposite angle )

∠4 = 77°

Now...

∠1 + ∠2 = 180° ( supplementary angle )

∠1 = 180° - 77°

∠1 = 103°

here....

∠1 = ∠3 ( vertically opposite angle )

∠1 = 103°

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