TRUE / FALSE

Question 11 Mark

If two lines are cut by a transversal, then each pair of alternate interior angles are equal.

Answer

If two lines are cut by a transversal, then each pair of alternate interior angles are equal. (False)
Correct : If the two lines are parallel, then it is possible. Otherwise, these angles are different.

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Question 21 Mark

If two lines are cut by a transversal, then each pair of corresponding angles are equal.

Answer

If two lines are cut by a transversal, then each pair of corresponding angles are equal. (False)
Correct : It may or may not be equal.
If lines are parallel than the corresponding angle are the same and if lines are not parallel than angles are different.

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Question 31 Mark

30° is one-half of its complement.

Answer

$30^{\circ}$ is one-half of its complement. (True)
$\left(30^{\circ}\right.$ and $60^{\circ}$ are complement and $\left.30^{\circ}=\frac{1}{2} \times 60^{\circ}\right)$

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Question 41 Mark

Pair of vertically opposite angles are always supplementary.

Answer

Pair of vertically opposite angles are always supplementary. (False)

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Question 51 Mark

Two adjacent angles always form a linear pair.

Answer

Two adjacent angles always form a linear pair. (False)
Correct : As the sum of two adjacent angles can be less than 180° or more than 180°.

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Question 61 Mark