GeoGebra
建立課程
GeoGebra
S5 geometry
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
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Fractions, Decimals & Percentages
S3 Ch09.1C 等高線地圖D(3D圖)
探索資源
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GeoGebra帳號註冊與登入
sin(x) 的函數圖形的副本
探索主題
算術
黎曼和（Riemann Sum）
垂心
正三角形
多項式函數
