Sarthaks Test
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In the given figures below, decide whether l is parallel to m.

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(i) 126° + 44° = 170° l is not parallel to m because sum of interior opposite angles should be 180°.

(ii) 75° + 75° = 150° l is not parallel to m because sum of angles does not obey the property of parallel lines.

(iii) 57° + 123° = 180° l is parallel to m due to supplementary angles property of parallel lines.

(iv) 98° + 72° = 170° l is not parallel to m because sum of angles does not obey the property of parallel lines.

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