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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
兩組對邊相等的四邊形
直角坐標平面上的旋轉變換
算柱 (兩位數)
Nested spiral octagon
四邊形的特性
Discover Resources
發現畢氏定理
volume of tetrahedron and parallelepiped
歪斜線與三角形面積
橢圓1-同心圓法
S5R1L4圆内迭代反射——朱老师
Discover Topics
Exponent
Triangles
Similar Triangles
Continuity
Perimeter
