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正弦定理
Author:
yuchengda
GeoGebra
New Resources
兩位數加法
三位數除以一位數（一）
找出對稱軸
畫出對稱圖形
兩組對邊相等的四邊形
Discover Resources
方格紙上畫四邊形
test02
畢氏定理
求公切線段長
直线与圆、圆与圆的位置关系
Discover Topics
Constructions
Normal Distribution
Triangles
Prism
Square