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Ex 6.2, 1 - In the given figure, find the values of x & y - Parallel lines and traversal - Problems

  1. Chapter 6 Class 9 Lines and Angles
  2. Serial order wise
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Ex 6.2, 1 In the given figure, find the values of x and y and then show that AB || CD. Now, 50° + x = 180° x = 180° – 50° x = 130° Also, y = 130° ∴ x = y So, alternate angles are equal From theorem 6.3: If a transversal intersects two lines such that pair of alternate interior angles are equal, then lines are parallel. ∴ AB ∥ CD

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