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Outline
圓的性質
Arcs and Angles at Centre/ Circumference 弧、圓心角與圓周角
Spotlight 探射燈
Right Triangles in a Circle 圓內的直角三角形
Angle at Centre & Angle at Circumference: Proof 圓心角與圓周角：証明
Quiz on Angles in a Circle 圓內的角：測驗
圓的性質
Author:
Alex CHIK
GeoGebra 互動數學教室
http://www.geogebra.hk
Arcs and Angles at Centre/ Circumference 弧、圓心角與圓周角
Spotlight 探射燈
Right Triangles in a Circle 圓內的直角三角形
Angle at Centre & Angle at Circumference: Proof 圓心角與圓周角：証明
Quiz on Angles in a Circle 圓內的角：測驗
Next
Arcs and Angles at Centre/ Circumference 弧、圓心角與圓周角
New Resources
【案例】圆柱体内放置一个大球六个小球
漂亮的摇摆曲线
空间中两直线的位置关系
三位數除以一位數（二）
兩位數除以一位數（二）
Discover Resources
內擺線
大字體
國旗
Copy of area
S2 Angles Related to Rectilinear Figures
Discover Topics
Trapezoid
Bar Chart or Bar Graph
Distributions
Special Points
Rotation
