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GeoGebra
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綱要
S5 geometry
Angle in the same segment
Angle at centre is twice the angle at the circumference v2
Angle in the semi circle
Perpendicular bisector of a chord passes through the centre.
Equal chords are equidistant from the centre of the circle
Congruent Chords and their Central Angles
Ang in the opps segment.
Exterior angle of a cyclic quadrilateral
Converse of angle in alternate segment
Angle between tangents from external point
S5 geometry
作者：
wong kwok
Angle in the same segment
Angle at centre is twice the angle at the circumference v2
Angle in the semi circle
Perpendicular bisector of a chord passes through the centre.
Equal chords are equidistant from the centre of the circle
Congruent Chords and their Central Angles
Ang in the opps segment.
Exterior angle of a cyclic quadrilateral
Converse of angle in alternate segment
Angle between tangents from external point
下一步
Angle in the same segment
最新資源
平行線的判定
活动三：应用性质
圓的切線方程
三角函数 的副本
中华人民共和国国旗
探索資源
直角三角形內切圓半徑
手拉手模型
S0G5平均不等式（无字证明）
椭圆的定义
sin(x) 的函數圖形的副本
探索主題
統計特徵
微分
不等式
分段函數
角度
