Class 7 Maths · Ganita Prakash Part 1 · Chapter 5
Parallel and Intersecting Lines
Angles made by crossing lines, parallel lines cut by a transversal — the geometry rules every later class leans on.
Free lessons by Rashmi Ma'am — open the playlist on YouTube →
Rashmi Ma’am teaches Class 7 Maths free on YouTube, with new lessons every week. Read this chapter page, then practise below.
What your child learns
- Identify vertically opposite angles and linear pairs — and why they behave as they do
- Recognise corresponding and alternate angles when a transversal crosses parallel lines
- Use angle relationships to find unknown angles without measuring
- Check whether two lines are parallel using angle evidence
- Draw parallel and perpendicular lines cleanly
Parent pointer
Geometry marks are the easiest to secure in exams — the rules are few and they never change. If your child learns to write the reason next to every angle (“vertically opposite”, “alternate angles”), they’ll keep full marks through Class 10. Start that habit in this chapter.
Stuck on this chapter? Message us — tell us the exercise number and we’ll point you to the right video.
💬 Ask about this chapterPractise it — the Azone loop
Watch the class
Read the notes on this page, then watch free Class 7 lessons on YouTube. Pause and solve along.
Quick questions parents ask
My child finds the angle names confusing — F, Z, X angles?
Those letter-shapes (F = corresponding, Z = alternate, X = vertically opposite) are memory aids, and they work — but exams want the proper names. The video teaches the shape trick and the proper vocabulary together.
Does this chapter matter for Tallentex and Olympiads?
Very much. Angle-chasing questions are a fixture in every Class 7 competitive paper, and they’re very winnable — the rules fit on one page. Our test series has them in every mock.
Want this chapter to actually stick?
Take the Tallentex-style test series for Class 7 — 10 full-length timed papers, 800 questions, and a worked solution for every one. Start with the free sample test.
