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

    

Answers (1)

x= 90\degree                (vertically opposite angles)

x+y+30\degree = 180\degree      (sum of angles of a triangle is 180\degree)

90\degree+y+30\degree = 180\degree

y = 60\degree

y=z=60\degree                (alternate interior angles)

 

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