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  • Top Drawer Teachers: Geometry-edit
      Properties of Chords and Angles
      Lines from the Centre
      Angles at the Centre and Circumference
      The Angle in a Semi-Circle
      Angles in the Same Segment
      Angles of Cyclic Quadrilaterals
      Tests for Cyclic Quadrilaterals (1)
      Tests for Cyclic Quadrilaterals (2)
      Tests for Cyclic Quadrilaterals (3)
      The Angle Between a Tangent and a Radius
      Tangents from an External Point
      The Angle Between a Tangent and a Chord
      Intersecting Circles
      Intersecting Chords
      Tangents and Secants
      The Angle Sum of a Triangle
      Linking Angles
      An Angle in the Bend
      Morphing a rectangle

Top Drawer Teachers: Geometry-edit

Author:
Ronan Downes, aamtinc
Topic:
Geometry
This collection of applets can be used to investigate circle geometry theorems. Top Drawer Teachers is a project of The Australian Association of Mathematics Teachers (AAMT) Inc. http://topdrawer.aamt.edu.au

  • Properties of Chords and Angles

  • Lines from the Centre

  • Angles at the Centre and Circumference

  • The Angle in a Semi-Circle

  • Angles in the Same Segment

  • Angles of Cyclic Quadrilaterals

  • Tests for Cyclic Quadrilaterals (1)

  • Tests for Cyclic Quadrilaterals (2)

  • Tests for Cyclic Quadrilaterals (3)

  • The Angle Between a Tangent and a Radius

  • Tangents from an External Point

  • The Angle Between a Tangent and a Chord

  • Intersecting Circles

  • Intersecting Chords

  • Tangents and Secants

  • The Angle Sum of a Triangle

  • Linking Angles

  • An Angle in the Bend

  • Morphing a rectangle

Next
Properties of Chords and Angles

New Resources

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  • Thin Slicing Geometry Proofs 2
  • Chord of a Circle 1
  • Ellipse inscribed in irregular convex quadrilateral
  • Quadrilateral Properties 2

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