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Similarity Criteria, Basic Proportionality Theorem, Areas of Similar Triangles and the board questions built on them — roughly 8 marks of the paper.
What this chapter covers
- 1Similarity Criteria
- 2Basic Proportionality Theorem
- 3Areas of Similar Triangles
- 4Pythagoras Theorem
These lessons are being recorded. The written notes for this chapter are free to download now.
Learning resources
Seedha Notes
Chapter notes withimportant points,examples & format
View Notes for Triangles, MathematicsPractice Questions
Important questions,board questions,numericals
Practice Now for Triangles, MathematicsPrevious yearquestions withfull solutions
View PYQs for Triangles, MathematicsSample Paper
Board patternsample paper withmarking scheme
Open Paper for Triangles, Mathematics
In the notes
Topics covered
- 01Similarity Criteria28:15
- 02Basic Proportionality Theorem31:22
- 03Areas of Similar Triangles33:12
- 04Pythagoras Theorem13:57
After this chapter you can
- Explain similarity criteria without reading from the book
- Present basic proportionality theorem in the format the marking scheme rewards
- Attempt every previous year question set on this chapter
- Marks
- 8
- PYQs
- 9
- Video
- 1h 47m
Then do the work
- One-shot revision, 27 minutes
- Formula sheet for this chapter
- Printable summary, 2 pages
Prepare
| Year | Asked as | Marks |
|---|---|---|
| 2025 | Long answer | 8 |
| 2024 | Short answer | 12 |
| 2023 | Case based | 4 |
| 2022 | MCQ set | 8 |
| 2021 | Long answer | 12 |
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