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62326 旋轉長方形
Author:
呂麗珠
GeoGebra
New Resources
拼砌四邊形
兩位數加法
柱體建築師
兩位數除以一位數（一）
四邊形的特性
Discover Resources
Triangular Number 三角形數
追击问题
ego-motion
軌跡觀察
S0G4L2 到两点距离的运算为定值
Discover Topics
Rotation
Interest Calculation
Cosine
Right Triangles
Integers