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三角形內心
Author:
Chang Hui Fang
GeoGebra
New Resources
GeoGebra笔记功能体验课件
找出對稱軸
算柱 (兩位數)
三位數除以一位數（一）
【案例】圆柱体内放置一个大球六个小球
Discover Resources
棋盤的 L 形覆蓋
Statistics (M1)
test02
香港貨幣
Kopia soccer
Discover Topics
Parallelogram
Trigonometry
Subtraction
Perimeter
Probability