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Question (21)

QN0015807

If one corresponding angle is 75°, the other corresponding angle is:

(A) 105°
(B) 75°
(C) 15°
(D) 180°

Correct Answer: B

Explanation:

Corresponding angles are equal.

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Question (22)

QN0015808

Two lines are cut by a transversal. One pair of corresponding angles measures 82° and 98°. The lines are:

(A) Parallel
(B) Perpendicular
(C) Not parallel
(D) Coincident

Correct Answer: C

Explanation:

Corresponding angles are not equal, so the lines are not parallel.

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Question (23)

QN0015809

A transversal intersects two lines. One pair of corresponding angles measures 120° each. The lines must be:

(A) Parallel
(B) Perpendicular
(C) Intersecting only
(D) Equal in length

Correct Answer: A

Explanation:

Equal corresponding angles imply parallel lines.

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Question (24)

QN0015810

In an activity, ∠a = 60° and its corresponding angle ∠b = 60°. This suggests that the two lines are:

(A) Perpendicular
(B) Parallel
(C) Coincident
(D) Intersecting

Correct Answer: B

Explanation:

Equal corresponding angles indicate parallel lines.

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Question (25)

QN0015811

Alternate angles are obtained using a corresponding angle followed by a:

(A) Linear pair
(B) Reflex angle
(C) Vertically opposite angle
(D) Right angle

Correct Answer: C

Explanation:

Alternate angles can be identified through corresponding and vertically opposite angles.

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Question (26)

QN0015812

When a transversal intersects parallel lines, alternate angles are always:

(A) Equal
(B) Supplementary
(C) Complementary
(D) Unequal

Correct Answer: A

Explanation:

Alternate angles are equal.

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Question (27)

QN0015813

If an alternate angle measures 128°, its paired alternate angle measures:

(A) 52°
(B) 128°
(C) 90°
(D) 180°

Correct Answer: B

Explanation:

Alternate angles are equal.

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Question (28)

QN0015814

Parallel lines l and m are cut by a transversal. If one angle is 135°, the adjacent angle forming a linear pair is:

(A) 45°
(B) 135°
(C) 90°
(D) 55°

Correct Answer: A

Explanation:

Linear pair angles sum to 180°. 180° − 135° = 45°.

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Question (29)

QN0015815

If ∠6 = 135° in the standard transversal figure, ∠8 is:

(A) 45°
(B) 90°
(C) 135°
(D) 180°

Correct Answer: C

Explanation:

∠6 and ∠8 are vertically opposite angles.

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Question (30)

QN0015816

If ∠3 = 50° in parallel lines cut by a transversal, the corresponding angle ∠6 is:

(A) 50°
(B) 130°
(C) 100°
(D) 140°

Correct Answer: B

Explanation:

∠2 = 130° and ∠2 = ∠6 as corresponding angles.

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Question (21)

If one corresponding angle is 75°, the other corresponding angle is:

Explanation:

Link:

Question (22)

Two lines are cut by a transversal. One pair of corresponding angles measures 82° and 98°. The lines are:

Explanation:

Link:

Question (23)

A transversal intersects two lines. One pair of corresponding angles measures 120° each. The lines must be:

Explanation:

Link:

Question (24)

In an activity, ∠a = 60° and its corresponding angle ∠b = 60°. This suggests that the two lines are:

Explanation:

Link:

Question (25)

Alternate angles are obtained using a corresponding angle followed by a:

Explanation:

Link:

Question (26)

When a transversal intersects parallel lines, alternate angles are always:

Explanation:

Link:

Question (27)

If an alternate angle measures 128°, its paired alternate angle measures:

Explanation:

Link:

Question (28)

Parallel lines l and m are cut by a transversal. If one angle is 135°, the adjacent angle forming a linear pair is:

Explanation:

Link:

Question (29)

If ∠6 = 135° in the standard transversal figure, ∠8 is:

Explanation:

Link:

Question (30)

If ∠3 = 50° in parallel lines cut by a transversal, the corresponding angle ∠6 is:

Explanation:

Link:

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