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旋转体
Author:
冯伟冀
Topic:
Trigonometry
GeoGebra
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画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
找出對稱軸
柱體建築師
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數學模型
三年級-分數
垂心應用
勝者即正義，可愛即正義~
畫三角形 題1b 的複本
Discover Topics
Diagrams
Upper and Lower Sum or Riemann Sum
Difference and Slope
Tangent Line or Tangent
Coordinates