Q30 of 805 Page 257

In the given figure, AB || CD, ∠ECD = 100°, ∠EAB = 50° and ∠AEC = x°. Find the value of x.


Given, ∠ECD = 100°, ∠EAB = 50°


∠COB = 100°


⸫ x = 100° - 50° [Exterior angle = Sum of two opposite interior angles of a triangle]


⸫ x = 50°


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