Table of Contents

1. Angles in a semi-circle
   1. Angles in a semi-circle
2. Angle between tangent and radius
   1. Angle between tangent and radius
3. Angle at the centre and angle at the circumference
   1. Angle at the centre and angle at the circumference
4. Angles in the same segment
   1. Angles in the same segment
5. Angles in opposite segments
   1. Angles in opposite segments
6. Opposite angles in cyclic quadrilaterals
   1. Opposite angles in a cyclic quadrilateral
7. Distance of equal chords from the centre
   1. Distance of equal chords from the centre
8. Perpendicular bisector of a chord
   1. Perpendicular bisector of a chord
9. External tangents from a point outside the circle
   1. External tangents from a point outside the circle
10. Angles in alternate segments
    1. Angles in alternate segments
11. Chords intersecting inside the circle
    1. Chords intersecting inside the circle
12. Chords intersecting outside the circle
    1. Chords intersecting outside the circle
13. Angle between extended chord and tangent
    1. Tangent intersecting extended chord