Тойрог

Navchaa Tserendorj


  • 1. Area of Circle: A Wedge Demo LB-2
  • 2. 11.1 π and the Circumference and Area of a Circle
  • 3. Circle Theorem 7 - Tangents from a Point to a Circle II

1.

Area of Circle: A Wedge Demo LB-2

The area of a circle with radius r is A=πr². But why? The following is a wedge model.
1. How does the dynamic model connect the idea of circle area and the formula? [br]2. What might be another way to show the connections between the formula and the concept of circle area?
– Lingguo Bu

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