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P2 計算完結時間
Author:
Chan Pui Chuen
GeoGebra
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幾何作圖題：切三圓（題目）
Nested spiral octagon
近似值：有效數字
四邊形的特性
算柱 (兩位數)
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鏡射
動國旗
外面有圓
劉徽的「割圓術」的副本
最大公约数的几何意义
Discover Topics
Cylinder
Straight Lines
Function Graph
Differential Calculus
Equilateral Triangles