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serenavass

Answer:

they are alternate interior angles and because we have parallel lines these two angles are equal

these angles are equal to 115°

Step-by-step explanation:

57x+1=56x+3

57x-56x=3-1

x=2

57x+1=57*2+1=114+1=115°

56x+3=56*2+3=112+3=115°

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