Math, asked by muskanverma1109, 9 months ago

Pls ans this ques...​

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Answered by namratarathi990
1

Answer:

AB||CD

angle BAD+angle ADC=180°(interior angles)

90°+angle ADC=180°

angle ADC=90°

angle BCD+ angle ABC=180°(interior angles)

120°+angle ABC=180°

angle ABC=60°

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