In the adjoining figure, p || q. Find the unknown angles.

d = 125° (Corresponding angles)

e = 180° − 125° = 55° (Linear pair)

f = ∠e = 55° (Vertically opposite angles)

c = ∠f = 55° (Corresponding angles)

a = ∠e = 55° (Corresponding angles)

b = ∠d = 125° (Vertically opposite angles)

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