Similarity

Mathematics · Chapter 14 · 3. Geometry

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Your path through this chapter

1
Visual lesson Beta
1. Part 1: Similar figures and the conditions for similar triangles21 slides
2. Part 2: Proportionality, areas, maps and models23 slides
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Notes Beta
7 sections with key terms, formulas and exam tips.
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Flashcards Beta
30 cards for quick recall of key terms and facts.
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Practice
68 board-style questions with instant checks: Multiple choice 18, Short answer 17, Numerical 8, Long answer 7.
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5
Chapter test Free
Short and long chapter tests in board pattern, with results and analysis.
- Chapter test (long) — Similarity · 40 marks · 90 min
- Chapter test (short) — Similarity · 20 marks · 45 min
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Similarity as a size transformation; comparison with congruency
Conditions for similar triangles: SSS, SAS and AA
Basic proportionality theorem and its applications
Areas of similar triangles are proportional to the squares of corresponding sides
Applications to maps and models