<p>Given that $AB$
 is parallel to $CD$
. Find the value(s) of the unknown(s) in each of the figures below, stating your reasons clearly.

</p>
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Given that $AB$
 is parallel to $CD$
. Find the value(s) of the unknown(s) in each of the figures below, stating your reasons clearly.



Angles Formed by Two Parallel Lines and a Transversal

Angles Formed by Two Parallel Lines and a Transversal

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