Math, asked by purvahidau, 4 months ago

please give me a answer

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Answered by sai172982

1

Answer:

DB(common)

angle ABD=angle CDB

angle ADB= angle CBD

therefore ∆ABD is congruent to ∆CDB

by cpct AD=BC

and, DC=AB

as opposite sides are equal then it is parallelogram

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