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"拈" 類遊戲之一-搶21遊戲 The 21 game
Author:
侯杰材
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
近似值：有效數字
判斷球體
國旗 (Claude 版)
Earth with coastline
Discover Resources
三角形重心軌跡(動點在三圓上)
斜拋模型
Distributive Law of Multiplication 2 (乘法的分配率 2)
多邊形外角和
量角器
Discover Topics
Exponent
Median Line
Functions
Translation
Rectangle