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三角形面積
Author:
s1109465
GeoGebra
New Resources
龙形曲线-分形龙
第八周作业
盈利與虧蝕
折扣
活动三：应用性质
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Platonic Solids 柏拉圖立體
廣義角的代換(90,270)
翰林B4習p85_10
劉虹圻 內心
函数作图工具的副本
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Rotation
Reflection
Polygons
Equilateral Triangles
Trapezoid