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向日葵
Author:
myao1999
GeoGebra
New Resources
四邉形 (四年級) 教師版
判斷球體
兩組對邊相等和有直角的四邊形
sanjiaohanshu
長方體平面投影 (Codex版)
Discover Resources
曲柄滑塊模擬
周界
面積2
椭圆的定义
三角函數圖形（全）的副本
Discover Topics
Trigonometry
Area
General Quadrilateral
Right Triangles
Poisson Distribution