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  1. Chapter 5 Class 7 Lines and Angles
  2. Serial order wise
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Ex 5.2, 4 Find the value of x in each of the following figures if l ∥ m (i)Here, ∠HGB = ∠AGE ∠HGB = 110° Now, for parallel lines l and m, with transversal t. ∠HGB + ∠GHD = 180° 110° + ∠GHD = 180° x = 180° − 110° x = 70° Ex 5.2, 4 Find the value of x in each of the following figures if l ∥ m (ii)For parallel lines l and m with transversal a. ∠AIE = ∠CJI 100° = x x = 100°

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.