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Question
In the given figure, y = 108° and x = 71° Are the lines m and n parallel? Justify.
Solution
We have, x = 71°and y = 108°
x + y = 71∘ + 108∘
∴ x + y = 179∘
So, x + y ≠ 180∘
∴ The angles x and y are not supplementary.
∴ The angles do not satisfy the interior angles test for parallel lines.
∴ Line m and line n are not parallel lines.
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