3. State giving reason whether AB / CD60°(i) p 609120° – InterviewSolution

1.

3. State giving reason whether AB / CD60°(i) p 609120°

Answer»

angle CSR = angle QSD = 120° ( vertically opposite angles)

and since angle CSR + angle ARS = 120+60=180°

which also makes adjacent angles

so, AB || CD

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