Ex 5.2, 6 - In the figures below, decide whether l is parallel to m

 

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Ex 5.2, 6 In the given figures below, decide whether l is parallel to m (i)For l and m, with transversal n ∠1 & ∠2 are interior angles on same side of transversal. ∠1 + ∠2 = 126° + 44° = 170° ≠ 180° As, sum of internal angles on the same side of transversal is not 180° Lines l and m are not parallel.

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