Respuesta :

blackshades

∠1 + ∠2 = 180° (supplementary / linear pair)

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∠1 ≅ ∠2

So, both ∠1 & ∠2 are equal to each other. Take them as x.

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∠1 + ∠2 = 180°

x + x = 180

2x = 180

x = 180/2

x = 90°

So, ∠1 and ∠2 = x = 90°

Hope it helps!

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