B4 Circle Properties

Student Activities:
  1. Angle in a Semicircle , Radius and Chord , Radius and Tangent Read the explanation and then experiment with the diagram (mathsnet)

 

Teaching Resources:
  1. Inscribed Angle and Central Angle A dynamic diagram to illustrate the angle in a semicircle (www.ies.co.jp)
  2. Circle Geometry (Inscribed and Central angles) Fully interactive diagram useful for angle in a semi-circle Java (by Ron Blond)
  3. Circle Geometry (Tangents and Radii) Fully interactive Tangent Kite diagram and chord/ midpoint/ perpendicular diagram Java (by Ron Blond)
  4. Area of Sector Interactive demo with sliders for radius and angle Flash (thesaurus.maths.org)
  5. Angle at Centre Interactive demo Flash (thesaurus.maths.org)
  6. Triangle Classification Has the facility to show dynamically triangles in a semicircle with side and angle measurements (illuminations.nctm.org)

 

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