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  • Circle Theorems
      Isosceles Triangle in a Circle (page 1)
      Isosceles Triangle in a Circle (page 2)
      Simple Angle in a Semi-circle
      Angle in a semi-circle
      Angle in a semi-circle (proof)
      Simple Angle at the Centre
      Simple Angle at the Centre (Reflex Case)
      Angle at the centre (page 1)
      Angle at the centre (page 2)
      Angle at the centre (page 3)
      Angle at the centre (page 4)
      Angles in the same Segment
      Angles in the same Segment (Proof)
      Simple Cyclic Quadrilateral
      Cyclic Quadrilateral (Proof)
      Alternate Segment Theorem (page 1)
      Alternate Segment Theorem (page 2)
      Alternate Segment Theorem (proof)
      Common Tangents to a Circle
      Common Tangents to a Circle (Proof)

Circle Theorems

Author:
LGS teachers, Michael Borcherds
Topic:
Circle

  • Isosceles Triangle in a Circle (page 1)

  • Isosceles Triangle in a Circle (page 2)

  • Simple Angle in a Semi-circle

  • Angle in a semi-circle

  • Angle in a semi-circle (proof)

  • Simple Angle at the Centre

  • Simple Angle at the Centre (Reflex Case)

  • Angle at the centre (page 1)

  • Angle at the centre (page 2)

  • Angle at the centre (page 3)

  • Angle at the centre (page 4)

  • Angles in the same Segment

  • Angles in the same Segment (Proof)

  • Simple Cyclic Quadrilateral

  • Cyclic Quadrilateral (Proof)

  • Alternate Segment Theorem (page 1)

  • Alternate Segment Theorem (page 2)

  • Alternate Segment Theorem (proof)

  • Common Tangents to a Circle

  • Common Tangents to a Circle (Proof)

Next
Isosceles Triangle in a Circle (page 1)

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