Abcd Is Trapezium In Which Ab Dc And В€ A В€ B 45в° Find Angles C And D Of Trapezium

ABCD is a trapezium in which AB || DC and ∠A = ∠B = 45°. Find angles C and D of the trapezium.


Given, ABCD is a trapezium and whose parallel sides in the figure are AB and DC.
Since, AB || CD and BC is transversal, then sum of two cointerior angles is 180°.

angle b + angle c = 180

angle c = 180 – angle b

180-45=135 degree

angle c = 135 degree

angle a + angle d = 180

angle d=180-45

angle d=135 degree

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