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翰林數學_2下_CH3-1_三角形的內角與外角
Author:
翰林數學
GeoGebra
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判斷球體
四邉形 (四年級) 教師版
画直线等分三角形的面积
找出對稱軸
拼砌四邊形
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Ratio of angles at the centre and the length of the arcs.
p04 equidistant from two points
圖形
椭圆的定义
堑堵 鳖臑 阳马
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Curve Sketching
Division
Continuity
Angles
Solids or 3D Shapes