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七巧板
Author:
faisir
齊來玩一玩啦 ^_^p
GeoGebra
New Resources
球體建築師
sanjiaohanshu
畫出對稱圖形
兩組對邊相等的四邊形
兩位數除以一位數（二）
Discover Resources
銳角三角函數值的大小比較
Rectangle_01
長方形
XY 圖線段長度計算
单位圆与正弦函数
Discover Topics
Cosine
Subtraction
Numbers
Exponent
Arithmetic Operations