Geometry

emem


  • 1. Area of Circles
  • 2. Area of a Circle - Wedge/Sector Demonstration
  • 3. Discovering Pythagoras' Theorem by Area
  • 4. Area of Parallelograms
  • 5. Pythagorean Triples; 5,12,13
  • 6. Sum of the exterior angles of a convex polygon.
  • 7. Triangle Names and Angle Sum (Interior and Exterior)
  • 8. Investigating the Sum of Polygon Interior Angles
  • 9. Exterior Angle Theorem
  • 10. Angle Bisector Thm

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Area of Circles

What is the area of a circle? Explore with the following applet.
Anthony Or, GeoGebra Institute of Hong Kong.
– Anthony OR 柯志明

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資訊