Question

ABCD is an isosceles trapezium in which AB and CD are parallel. Find the other angles.


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Answer 1

Answer:

Angle C=Angle D=100°

Angle A=B=80°

Answer 2

since ab parallel CD

therefore angle abc and angle dcb =180 and angle c =100

now, since a Trapazim is also a parallelogram

angle b = angle d =80 ( opposite side of parallelogram are equal )

similarly angle a = angle c = 100

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