Question

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Answer 1

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Given: AB||CD||EF

To find: angle X , angle Y and angle Z

Solution: Since AB||CD||EF

therefore, CD||EF

angle X + 45°= 180° [co-interior angles]

angle X = 180°-45°

angle X= 135°

angle Y = 40° [alternate interior angles (AIA)]

angle Z + 40°=180° [linear pair]

angle Z= 180°-40°

angle Z= 140°

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