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将三角形面积一分为二
Author:
谢鹏
GeoGebra
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【案例】圆柱体内放置一个大球六个小球
画直线等分三角形的面积
錐體建築師
畫出對稱圖形
兩組對邊相等和有直角的四邊形
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直線上的鄰角_2
Copy of 固定周界的長方形的面積變化
gjc100a34 兩三角形重疊面積比
GGB 1104 EX01
面積
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Translation
Solids or 3D Shapes
Addition
Parallelogram
Set Theory