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幾何明珠2-3
Author:
bigbirdjack
GeoGebra
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画直线等分三角形的面积
第八周作业
【案例】2013年安徽高考15题
畫出對稱圖形
球體建築師
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優良作品2(季緯)
優良作品8(宜庭)
面積認識
圓內兩半圓相切問題
平行四邊形面積的副本
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Area
General Quadrilateral
Translation
Conditional Probability
Upper and Lower Sum or Riemann Sum