Last updated at April 16, 2024 by Teachoo
Question 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