CBSE Class 7 Mathematics Parallel and Intersecting Lines MCQs Set G

Question. If two corresponding angles are equal, what can we conclude about the two lines?
(a) They intersect
(b) They are perpendicular
(c) They are not related
(d) They are parallel

Answer: D

Question. The ideal line in geometry does not have any thickness. This is important because thickness variation can cause what in measurements?
(a) Parallel lines
(b) Measurement errors
(c) Equal angles
(d) Right angles

Answer: B

Question. If lines l and m are parallel and cut by transversal t, the pair of angles called corresponding angles are always
(a) Unequal
(b) Equal
(c) Supplementary
(d) Complementary

Answer: B

Question. In Fig 5.14, if line t is a transversal intersecting lines l and m, how many total pairs of vertically opposite angles are there?
(a) Two
(b) Three
(c) Four
(d) Eight

Answer: C

Question. When two parallel lines are cut by a transversal, which angle pair is equal?
(a) Linear pair
(b) Corresponding angles
(c) Supplementary angles
(d) Right angles

Answer: B

Question. If a transversal intersects two lines, it forms 8 angles. What is the maximum number of different angle measurements possible among these eight angles?
(a) Two
(b) Four
(c) Six
(d) Eight

Answer: B

Question. The concept that vertically opposite angles are equal is mathematically justified by a
(a) Measurement
(b) Experiment
(c) Proof
(d) Drawing

Answer: C

Question. If lines l and m are parallel, and transversal t cuts them. If ∠2 and ∠6 are corresponding angles, then their relationship is
(a) ∠2 + ∠6 = 180°
(b) ∠2 = ∠6
(c) ∠2 > ∠6
(d) ∠2 < ∠6

Answer: B

Question. When we draw two lines perpendicular to a transversal line l using a set square, the two new lines are guaranteed to be parallel because the corresponding angles are
(a) 45 degrees
(b) 60 degrees
(c) 90 degrees
(d) 180 degrees

Answer: C

Question. What is the measure of each angle when two lines intersect perpendicularly?
(a) 45°
(b) 90°
(c) 120°
(d) 180°

Answer: B

Question. Lines that lie on the same plane and never meet however far we extend them are called
(a) Intersecting lines
(b) Perpendicular lines
(c) Parallel lines
(d) Curved lines

Answer: C

Question. If line l and line m are NOT parallel, what is true about the corresponding angles formed by a transversal?
(a) They must be equal
(b) They can never be equal
(c) They must add up to 180 degrees
(d) They must be 90 degrees

Answer: B

Question. In Fig 5.25, ∠d and ∠f are a pair of what kind of angles?
(a) Corresponding angles
(b) Linear pairs
(c) Alternate angles
(d) Vertically opposite angles

Answer: C

Question. A line that intersects two lines at different points is called a:
(a) Segment
(b) Median
(c) Transversal
(d) Diagonal

Answer: C

Question. If parallel lines are cut by a transversal, and ∠f is 120 degrees, then its alternate angle ∠d must be
(a) 60 degrees
(b) 120 degrees
(c) 180 degrees
(d) 90 degrees

Answer: B

Question. How can you find the alternate angle ∠d of ∠f using other angle types?
(a) Find linear pair of ∠f
(b) Find corresponding angle of ∠f, and then its vertically opposite angle
(c) Find vertically opposite angle of ∠f
(d) Find angle next to ∠f

Answer: B

Question. When a transversal intersects parallel lines, the alternate angles are always
(a) Equal to each other
(b) Unequal
(c) Supplementary
(d) Complementary

Answer: A

Question. Which of the following does not indicate parallel lines?
(a) Lines that never meet
(b) Lines that intersect
(c) Lines with equal corresponding angles
(d) Lines with equal alternate angles

Answer: B

Question. In Example 1, parallel lines l and m are cut by t. If ∠6 is 135°, the corresponding angle ∠2 is
(a) 45°
(b) 135°
(c) 90°
(d) 180°

Answer: B

Question. In Example 1, if ∠6 is 135°, the measure of ∠5 is 45°. This is calculated because ∠5 and ∠6 form a
(a) Vertically opposite pair
(b) Alternate pair
(c) Linear pair
(d) Corresponding pair

Answer: C