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捷徑
Author:
chen mingchuan
GeoGebra
New Resources
sanjiaohanshu
近似值:有效數字
Nested spiral octagon
國旗 (作圖步驟直接餵給 Claude)
畫出對稱圖形
Discover Resources
阿基米德(5,6,6)
圍周
如何判斷曲線夠不夠圓
Copy of 劉徽的「割圓術」
周长相等,正方形,长方形和正三角形,圆面积大小比较
Discover Topics
Equilateral Triangles
Pyramid
Quadrilaterals
Sine
Difference and Slope