Circle Theorems

Lindsay McLanachan, Jun 7, 2014


  • 1. Circle Theorem 1: Angle at the Centre and Circumference
  • 2. Circle Theorem 2: Angle in a Semi-Circle
  • 3. Circle Theorem 3: Angles on the Same Arc
  • 4. Circle Theorem 4: Tangent and Radius
  • 5. Circle Theorem 5: Isosceles Triangles
  • 6. Circle Theorem 6: Interior Angles Cyclic Quadrilaterals
  • 7. Circle Theorem 7: Exterior Angles Cyclic Quadrilaterals

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Circle Theorem 1: Angle at the Centre and Circumference

Explore the relationship between angles at the centre and circumference of a circle.
– Lindsay McLanachan

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