CBSE Class 7 Mathematics Parallel and Intersecting Lines MCQs Set C

Question. Alternate angles formed by a transversal intersecting parallel lines are always
(a) Equal to each other
(b) 90 degrees
(c) 180 degrees
(d) Different from each other

Answer: A

Question. A line that intersects two or more lines at distinct points is called ____ .
(a) Transversal
(b) Parallel lines
(c) Intersecting lines
(d) None of these

Answer: A

Question. In geometry, sometimes when we measure linear pairs, they may not add up to exactly 180 degrees because of measurement errors and also variation in the thickness of the lines drawn, is it true?
(a) No, only thickness is the reason
(b) No, only errors are the reason
(c) Yes, both can cause error
(d) No, they must always be exactly 180

Answer: C

Question. Given parallel lines l and m intersected by transversal t. If angle 6 is 135 degrees, what is the measure of its vertically opposite angle, angle 8?
(a) 45 degrees
(b) 135 degrees
(c) 90 degrees
(d) 180 degrees

Answer: B

Question. Given parallel lines l and m. If angle 6 is 135 degrees, and angle 5 and angle 6 are a linear pair, then angle 5 is
(a) 135 degrees
(b) 90 degrees
(c) 45 degrees
(d) 180 degrees

Answer: C

Question. If two lines are intersected by a transversal, then the number of pairs of corresponding angle is
(a) 1
(b) 2
(c) 3
(d) 4

Answer: D

Question. When a transversal intersects a pair of parallel lines, the interior angles on the same side of the transversal always add up to
(a) 90 degrees
(b) 120 degrees
(c) 180 degrees
(d) 360 degrees

Answer: C

Question. If line segments l and m are not parallel, and angle 'a' is 120 degrees, and corresponding angle 'f' is 70 degrees, what happens?
(a) Corresponding angles are not equal
(b) Lines must intersect
(c) Sum is not 180
(d) Both (a) and (b) are true

Answer: D

Question. If lines l and m are parallel, and transversal t cuts them. If angle 3 is 50 degrees, what is the value of angle 6, which is an interior angle on the same side?
(a) 50 degrees
(b) 130 degrees
(c) 90 degrees
(d) 180 degrees

Answer: B

Question. What is the sum of interior angles on the same side of a transversal intersecting parallel lines?
(a) 90°
(b) 180°
(c) 360°
(d) 120°

Answer: B

Question. In the problem above (Q35), angle 3 and angle 6, these are called
(a) Interior angles
(b) Alternate angles
(c) Linear pairs
(d) Corresponding angles

Answer: A

Question. If two lines intersect at a point, and four angles are formed (a, b, c, d), the equality of angle 'a' and angle 'c' is because they are
(a) Linear pairs
(b) Corresponding angles
(c) Vertically opposite angles
(d) Interior angles

Answer: C

Question. The property that angle 'a' plus angle 'b' equals 180 degrees is due to which angle type?
(a) Vertically opposite angles
(b) Corresponding angles
(c) Straight angles
(d) Alternate angles

Answer: C

Question. If ∠f is 120°, what is the measure of its alternate angle ∠d in Fig.5.25?
(a) 60°
(b) 120°
(c) 180°
(d) 90°

Answer: B

Question. In drawing parallel lines using a ruler and a set square, the method relies on making two lines perpendicular to a transversal l. What angle must these perpendicular lines make with l?
(a) 45 degrees
(b) 60 degrees
(c) 90 degrees
(d) 180 degrees

Answer: C

Question. When drawing parallel lines using a set square, the two new lines are confirmed parallel because the transversal forms equal
(a) Alternate angles
(b) Vertically opposite angles
(c) Linear pairs
(d) Corresponding angles

Answer: D

Question. To make a line m parallel to line l passing through point A using paper folding, the line t that you fold first through A must be what to l?
(a) Parallel
(b) Perpendicular
(c) Diagonal
(d) Intersecting

Answer: B

Question. In a pair of parallel lines intersected by a transversal, what is true about alternate angles?
(a) They are unequal
(b) They add up to 180°
(c) They are equal
(d) They are perpendicular

Answer: C

Question. If line segment AB is parallel to CD, and AD is a transversal. If angle ADC is 60 degrees, then the interior angle DAB must be
(a) 60 degrees
(b) 180 degrees
(c) 90 degrees
(d) 120 degrees

Answer: D

Question. In Fig 5.25, angle 'd' and angle 'f' are called
(a) Linear pairs
(b) Corresponding angles
(c) Alternate angles
(d) Vertically opposite angles

Answer: C