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Ex5D#2
Author:
Big Lee
GeoGebra
New Resources
球体的体积推导
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
兩位數除以一位數（一）
畫出對稱圖形
Discover Resources
log functions
周界2
Geometry: Angles Sum of Triangle (幾何：三角形內角和)
maths
两角差的正弦公式证明2
Discover Topics
Logic
Unit Circle
Isosceles Triangles
Subtraction
Trigonometry