Grade 11 · Geometry · 74 pages · PDF

Circle Theorems

Clear, exam-focused notes on all eight IGCSE circle theorems, with diagrams, multi-step reasoning and fully worked examples.

A complete 17-page IGCSE guide to circle theorems. It starts with the key vocabulary, then covers all eight theorems one at a time: angle at the centre, same segment, semicircle, cyclic quadrilaterals, the three tangent theorems, chord bisection and the alternate segment theorem. Each theorem comes with a clear diagram and a worked example. Later sections teach chain reasoning across two or three theorems, with a keyword guide for spotting which theorem to use. It ends with a quick-reference table, an exam checklist and exam tips.

What's in the pack

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• Worksheet · 33 pages

  Worksheet

  Practice questions in the order the notes teach them.

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• Solutions · 23 pages

  Solutions

  Every worksheet question worked in full.

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• Main Notes · 18 pages

  Main Notes

  The full notes: one idea per page, a worked example beside every rule.

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Topics covered

• Parts of a circle and key vocabulary
• Angle at the centre
• Angles in the same segment
• Angle in a semicircle
• Cyclic quadrilaterals
• Tangent and radius
• Two tangents from an external point
• Perpendicular from the centre to a chord
• Alternate segment theorem
• Chain reasoning with multiple theorems
• Algebra and Pythagoras with circle theorems
• Quick reference table and exam tips

Format

Print-ready PDF

Items

3

Delivery

By email