In Fig.6.5,which of the two lines are parallel? -Maths 9th

In Fig.6.5,which of the two lines are parallel? -Maths 9th
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Answer :

Solution   :- l||m, because angles on the same side of the transversal are supplementary, i.e., 128° +52° = 180°. Therefore p is not parallel to q, because 105° + 74° = 179°.
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