Ex 5.2, 6 - Chapter 5 Class 7 Lines and Angles - Part 6

Ex 5.2, 6 - Chapter 5 Class 7 Lines and Angles - Part 7

 

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Ex 5.2, 6 In the given figures below, decide whether l is parallel to m (iv) Here, ∠CHF + ∠CHG = 180° 72° + ∠CHG = 180° ∠CHG = 180° − 72° ∠CHG = 108° Now, For lines l and m, with transversal n ∠ BGH and ∠ CHG are alternate interior angles and they are not equal as ∠BGH ≠ ∠CHG (98° ≠ 108°) As alternate interior angles are not equal, lines l and m are not parallel.

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo