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Angles associated with Parallel Lines 三線八角
Author:
Hui Sir
GeoGebra
New Resources
直角坐標平面上的旋轉變換
找出對稱軸
三位數除以一位數（二）
第八周作业
畫出對稱圖形
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探究平行四邊形面積(2)
正四面體與正八面體
rotational symmetry_1
弹簧的副本
S0G4L2 到两点距离的运算值为定值1：到两点距离和
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Numbers
Linear Regression
Exponent
Perimeter
Power Functions