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滾動的圓
Author:
吳政憲
GeoGebra
New Resources
柱體建築師
找出對稱軸
畫出對稱圖形
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
Discover Resources
鑲嵌圖形-1
尤拉線
变化的三角形的垂心.许兴华数学
Illusion-内凹的正方形
两角差的正弦公式证明2
Discover Topics
Differential Calculus
Arithmetic Operations
Coordinates
Power Functions
Random Variables