Respuesta :

Answer:

∠3 = 43°

Step-by-step explanation:

Step 1: Given

∠5 = 43°

Step 2: Corresponding

∠5 = ∠1 = 43°

Step 3: Vertical ∠'s

∠1 = ∠3 = 43°

Answer:

∠3 = 43°

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