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椭圆规
Author:
蔡永志
Topic:
Conic Sections
椭圆规
GeoGebra
New Resources
找出對稱軸
【案例】圆柱体内放置一个大球六个小球
柱體建築師
三位數除以一位數（二）
画直线等分三角形的面积
Discover Resources
史坦納圓鍊 (Steiner Chain)
如何判斷球體
太陽系的認識(問答)
Copy of 線性組合2 三角形
示例2
Discover Topics
Subtraction
Arithmetic
Line Segment
Cylinder
Numbers