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proof3(1-1)吳奕杰
Author:
郭亮偉
GeoGebra
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球體建築師
画直线等分三角形的面积
拼砌四邊形
四邊形的特性
球体的体积推导（优化版）
Discover Resources
方格紙上畫正方形3
根據百分率找數量（二）: 例3
畫三角形 題2e
柱體體積(三角形)
gjc099b34 找指定圓圓心
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Plane Figures or Shapes
Secant Line or Secant
Fractal Geometry
Angles
Tangent Line or Tangent