Question

11. In the given figure, ABCD is a quadrilateral in which AB || DC and
AD || BC
Prove that Angle=ADC - Angle=ABC.​

Answer 1

Answer:

angle adc = angle ABC

Step-by-step explanation:

Since AB II CD AND AD II BC the opposite angles must be equal.

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Answer 2

Answer:

Give=AB Parallel to DC and AD Parrallel to BC

To Prove=alAngle ADC=Angle ABC

proof=

AB parallel to DC and AD parallel to AC so ABCD is a parallelogram and opposite angle of parallelogram are equal so angle ADC=angle ABC.