Circles: Angle and Cyclic Properties

Mathematics · Chapter 16 · 3. Geometry

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1
Visual lesson Beta
1. Part 1: Angle at the centre, same segment and semicircle20 slides
2. Part 2: Cyclic quadrilaterals20 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
72 board-style questions with instant checks: Multiple choice 18, Short answer 17, Fill in the blanks 8, Numerical 8.
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Chapter test Free
Short and long chapter tests in board pattern, with results and analysis.
- Chapter test (long) — Circles: Angle and Cyclic Properties · 40 marks · 90 min
- Chapter test (short) — Circles: Angle and Cyclic Properties · 20 marks · 45 min
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Angle at the centre is double the angle at the circumference
Angles in the same segment are equal; angle in a semicircle is a right angle
Cyclic quadrilaterals: opposite angles supplementary; exterior angle equals interior opposite angle