1.

In a given trapezium ABCD, AB || CD. If C = 90° and D = 100°, then find the measure ofDAB and CBA​

Answer»

Answer:

SINCE AB||CD

Angle D + Angle DAB = 180° (corresponding angles)

so, angle DAB is 80°

similarly, angle C + angle CBA = 180°

so, angle CBA is 90°



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