Question

please answer step by step​

Answer 1

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11.

(i) x = 180 - 60 = 120° (Linear pair and opposite angles of ||gram are equal)

y = 60° (Alternate angles)

(ii) x = 30° (Alternate angles and angle sum property of Δ )

y = 180° - 120 = 60° (alternate angles and angle sum property of Δ)

(iii) x = 80° (Corresponding angle and vertically opposite angles)

y = 80° (Corresponding angles)