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2. Consider the following parallelograms. Find the values of the unknownsx, y, z.

    

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In a parallelogram, adjacent angles are supplementary to each other. 

\angle B+\angle C = 180\degree

100\degree+ x = 180\degree

x = 80\degree

Opposite angles are equal .

Hence, z = x = 80\degree

and y = 100\degree

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seema garhwal

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