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angle between line and plane
Author:
johnmayhk
GeoGebra
New Resources
GeoGebra笔记功能体验课件
四邊形的特性
兩位數加法
画直线等分三角形的面积
兩位數除以一位數（二）
Discover Resources
waaachen
垂直平分線
對稱求最小
隨機迷宮
周界與面積
Discover Topics
Linear Functions
Rectangle
Percentages
LCM and GCD
General Quadrilateral