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保持比例
Author:
hjyanghj
Topic:
Geometry
GeoGebra
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兩位數除以一位數（一）
兩位數加法
【案例】圆柱体内放置一个大球六个小球
算柱 (兩位數)
四邉形 (四年級) 教師版
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glt-c02-09 五角柱旋轉
立體圖
旋轉體：8y² = x²(1 - x²)
圆的平移（平移加滑桿）
七下数学案例教程2-对顶角和邻补角例题
Discover Topics
Integers
Linear Regression
Addition
Perimeter
Incircle or Inscribed Circle