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Author:
Louis，Hong
GeoGebra
New Resources
圓周公式的應用
折扣
龙形曲线-分形龙2
常见四边形是否是双心四边形
多邊形的面積
Discover Resources
Line Perpendicular to Plane 垂直於平面的直線
正四角錐
直線上的鄰角_1
花瓣紋章
爱奇艺
Discover Topics
Quadrilaterals
Distributions
Cone
Subtraction
Vectors 2D (Two-Dimensional)