Parallel and Intersecting Lines
CBSE · Class 7 · Mathematics
Quick revision notes for Parallel and Intersecting Lines — CBSE Class 7 Mathematics. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Intersecting Lines and Angles
- When two lines intersect, they meet at exactly one point
- Two intersecting lines form exactly four angles
- Vertically opposite angles are always equal
Perpendicular Lines
- Perpendicular lines intersect at right angles (90°)
- All four angles formed are equal and measure 90° each
- Perpendicular lines are denoted with a square symbol (⊥)
Parallel Lines
- Parallel lines lie on the same plane and never meet
- Parallel lines maintain constant distance between them
- Denoted with arrow marks (→ for first set, ⇒ for second set)
Transversals and Angle Relationships
- A transversal is a line that intersects two other lines
- Forms 8 angles when crossing two lines
- Maximum of 4 distinct angle measures possible
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What are the important topics in Parallel and Intersecting Lines for CBSE Class 7 Mathematics?
Parallel and Intersecting Lines covers several key topics that are frequently asked in CBSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Parallel and Intersecting Lines — CBSE Class 7 Mathematics?
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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