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垂心(劉虹圻623)
Author:
呂麗珠
Topic:
Orthocenter
GeoGebra
New Resources
找出對稱軸
兩位數除以一位數（一）
錐體建築師
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
Discover Resources
Reflection 反射變換
救生員的職責
Copy of 随机模拟实验（撒豆子估算π）
基础知识
四年級 最大公因數
Discover Topics
Cosine
Angles
Intersection
Cuboid
Parabola