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題五
Author:
Chloe
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
常见四边形是否是双心四边形
垂直線的斜率
百分數及其應用
直線的斜率：水平變化 & 鉛垂變化
平行線的斜率
Discover Resources
正十二面體轉正二十面體
三角恒等式證明
Angle between Line and Plane
ABC 2
congruent triangle_provided by Mr Yeung Kar Chun
Discover Topics
Logarithm
Random Variables
Fractal Geometry
Rhombus
Similar Triangles