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Lines and Angles
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10/07/2021 11:45 am
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In Figure, find the values of x and y and then show that AB CD.
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10/07/2021 11:46 am
We know that a linear pair is equal to 180°.
x + 50° = 180°
∴ x = 130°
We also know that vertically opposite angles are equal.
y = 130°
In two parallel lines, the alternate interior angles are equal. In this,
x = y = 130°
This proves that alternate interior angles are equal and AB CD.