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The lines are not parallel.
180-75=105 degree≠125
i.e. the alternate angles r not equal.
180-75=105 degree≠125
i.e. the alternate angles r not equal.
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No, according the figure a and b are not parallel because sum of linear pair is more than 180 degree.(angle qoa = qpb=75 pair of corresponding angle) .
Therefore, angle 125 + 75 =180 (by linear pair) but 200>180 so, a and b are not parallel.
Therefore, angle 125 + 75 =180 (by linear pair) but 200>180 so, a and b are not parallel.
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