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優良作品1(沛綺)
Author:
Ching-Hui Chou
GeoGebra
New Resources
近似值：有效數字
兩組對邊相等的四邊形
判斷球體
Earth with coastline
四邊形的特性
Discover Resources
ghseh 二次函數描點法頂點法-5
sin, cos, tan 圖像
正三角形堆垛
固定三角形的條件−題2的副本
翰林數學_2下_CH4-2_特殊平行四邊形有關對角線的性質
Discover Topics
Quadratic Equations
Parabola
Linear Equations
Natural Numbers
Line Segment