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达芬奇椭圆仪
Author:
蔡永志
Topic:
Conic Sections
达芬奇椭圆仪
GeoGebra
New Resources
算柱 (兩位數)
第八周作业
找出對稱軸
三位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
Discover Resources
阿帕契直升機
三角形四心
gjc090a23 鈍角三角形外心
二進位翻牌
相遇问题
Discover Topics
General Quadrilateral
Prism
Arithmetic
Complex Numbers
Scalene Triangles