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椭圆画法2定义法
Author:
冯伟冀
GeoGebra
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找出對稱軸
四邊形的特性
錐體建築師
【案例】2018年全国1卷理科12题
近似值：有效數字
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mmvbcvbcv
Name the prism 3
用星星來比較圖形的大小
分水問題
作業一
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Similar Triangles
Parallelogram
Quadrilaterals
Ratios
Cylinder