Circle Geometry Theorems

David Hemer, Jun 2, 2015


  • 1. Angle in a semi-circle
  • 2. Angles subtended by the same arc
  • 3. Angle between a tangent and a chord
  • 4. Angle at the centre
  • 5. Radius-tangent
  • 6. Tangents from an external point

1.

Angle in a semi-circle

This applet demonstrates the angle in a semi circle theorem.
– David Hemer

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