Checking If Two or More Lines Are Parallel

Q.

Two parallel lines intersect

1. at a line

2. at a point

3. at two point

4. no where

Q. If line, AB is parallel to CD and CD is parallel to EF then AB is to EF.

1. Perpendicular
2. Parallel
3. Transversal

Q.

State whether the following statement is true or false.

If AB⊥ PQ and CD⊥PQ, then AB⊥CD.

1. True

2. False

Q. A transversal intersects two parallel lines. Prove that the bisectors of any pair of corresponding angles so formed are parallel.

Q. If line, AB is parallel to CD and CD is parallel to EF then AB is to EF.

1. Transversal
2. Parallel
3. Perpendicular

Q.

Which of the given concepts can be used for the construction of a line parallel to the given line?

1. Co-interior angles are equal.

2. Alternate interior angles are supplementary.

3. Vertically opposite angles are equal.

4. Corresponding angles are equal.

Q.

(a) In the figure shown below, what are the conditions on $\angle NOB$ and $\angle MPC$ that assure that line segment AB is parallel to the line segment CD? [2 MARKS]

(b)

Given line 'm' is parallel to line 'l'. Find x?

Q.

Parallel lines will intersect at one point.

1. True

2. False

Q. Parallel lines ___ at any point.

1. intersect
2. converge
3. do not intersect
4. meet

Q. Fill in the blank in each of the following to make the statement true:​

v. If a transversal intersects a pair of lines in such a way that a pair of alternate interior angles are equal, then the lines are

Q. Mark (✓) against the correct answer
In the given figure, it is given that AOB is a straight line and 4x = 5y.
What is the value of x?



(a) 100
(b) 105
(c) 110
(d) 115

Q. Akash draws a straight line on a sheet of paper. Then he draws another line such that the distance between the two is the same throughout. Similarly, he draws one more line in the same manner. He names these line as l, m and n. Which of the following is correct?

1. l $\perp$ m
2. m $\perp$ n
3. l $\parallel$ m $\parallel$ n
4. l $\parallel$ m only and m $\perp$ n

Q. In Fig., find out ∠PXR, if PQ || RS.

Q. If line, AB is parallel to CD and CD is parallel to EF then AB is to EF.

1. Perpendicular
2. Parallel
3. Transversal

Q.

Question 108

In the given figure, l m and n are parallel lines, and the lines p and q are also parallel find the values of a, b and c.

Q.

In figure line l intersects two parallel lines $ PQ$ and $ RS$. Then, which one of the following is not true?

Q.

How to draw an angle of 35 without using protactor

Q.

Bisect the given angles and measure the bisected angles in the following:

∠LMN = 90°

Q. If a transversal intersects two parallel lines, then corresponding angles are not necessarily equal.

1. True
2. False

Q.

'Parallel lines will intersect somewhere at infinity.' Is the statement true or false?

1. True

2. False