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  • Circle Theorems for CIE IGCSE Mathematics
  • Angles in a semi-circle
  • Angle between tangent and radius
  • Angle at the centre and angle at the circumference
  • Angles in the same segment
  • Angles in opposite segments
  • Opposite angles in cyclic quadrilaterals
  • Distance of equal chords from the centre
  • Perpendicular bisector of a chord
  • External tangents from a point outside the circle
  • Angles in alternate segments
  • Chords intersecting inside the circle
  • Chords intersecting outside the circle
  • Angle between extended chord and tangent

Circle Theorems for CIE IGCSE Mathematics

Author:
David Cheung
Topic:
Circle, Mathematics
Investigations on circle theorems for CIE IGCSE Mathematics
Circle Theorems for CIE IGCSE Mathematics

Table of Contents

  • Angles in a semi-circle

    • Angles in a semi-circle
  • Angle between tangent and radius

    • Angle between tangent and radius
  • Angle at the centre and angle at the circumference

    • Angle at the centre and angle at the circumference
  • Angles in the same segment

    • Angles in the same segment
  • Angles in opposite segments

    • Angles in opposite segments
  • Opposite angles in cyclic quadrilaterals

    • Opposite angles in a cyclic quadrilateral
  • Distance of equal chords from the centre

    • Distance of equal chords from the centre
  • Perpendicular bisector of a chord

    • Perpendicular bisector of a chord
  • External tangents from a point outside the circle

    • External tangents from a point outside the circle
  • Angles in alternate segments

    • Angles in alternate segments
  • Chords intersecting inside the circle

    • Chords intersecting inside the circle
  • Chords intersecting outside the circle

    • Chords intersecting outside the circle
  • Angle between extended chord and tangent

    • Tangent intersecting extended chord
Next
Angles in a semi-circle

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