NCERT Class 7 Maths Chapter 5 Parallel and Intersecting Lines Extra Questions with Answers

Class 7 Maths Chapter 5 Extra Questions with Answers

Q1. What are parallel lines?
Answer: Parallel lines are lines that never meet and remain the same distance apart.

Q2. What are intersecting lines?
Answer: Intersecting lines are lines that meet at a common point.

Q3. At how many points do two intersecting lines meet?
Answer: One point.

Q4. Can parallel lines intersect?
Answer: No.

Q5. What is the point where two lines meet called?
Answer: Point of intersection.

Q6. What angle is formed when two lines intersect perpendicularly?
Answer: A right angle (90°).

Q7. How many pairs of vertically opposite angles are formed by two intersecting lines?
Answer: Two pairs.

Q8. Vertically opposite angles are always ________.
Answer: Equal.

Q9. If one angle is 70°, what is its vertically opposite angle?
Answer: 70°.

Q10. If one angle is 120°, what is the adjacent angle?
Answer: 60°.

Q11. What is the sum of two adjacent angles on a straight line?
Answer: 180°.

Q12. Give one real-life example of parallel lines.
Answer: Railway tracks.

Q13. Give one real-life example of intersecting lines.
Answer: Crossroads.

Q14. Can two horizontal lines be parallel?
Answer: Yes.

Q15. Why are parallel and intersecting lines important in geometry?
Answer: They help us understand shapes, angles, constructions, and many geometric properties.