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直角三角形の三角比
Author:
Tatsuki Fujimoto
,
+x sir
GeoGebra
New Resources
畫出對稱圖形
三位數除以一位數（一）
画直线等分三角形的面积
拼砌四邊形
直角坐標平面上的旋轉變換
Discover Resources
挑战中考压轴题1.1.3
myFirstGeoGebra
集合
拋物線3--平行四邊形法
等腰三角形 － 等角對等邊的副本
Discover Topics
Quadrilaterals
LCM and GCD
Surface
Arithmetic Mean
Line Segment