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dragon(龙)
Author:
赵林
GeoGebra
New Resources
直角坐標平面上的旋轉變換
四邉形 (四年級) 教師版
柱體建築師
畫出對稱圖形
錐體建築師
Discover Resources
三角形外心的軌跡
立體圖形 KH
煞車
滑桿應用
鸚鵡螺旋線
Discover Topics
Trapezoid
Geometric Transformations
Inequalities
Arithmetic Mean
Rational Numbers