Question 2 (iv) Consider the following parallelograms. Find the values of the unknowns x,y,z
(iv)
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Solution
(iv) z=80∘ [Corresponding~angles] x+80∘=180∘ [Adjacent angles in a parallelogram are supplementary] ⇒x=180∘−80∘=100∘
Also, y=80∘ [Opposite angles are equal in a parallelogram]