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三角函數的性質
Author:
yuchengda
GeoGebra
New Resources
算柱 (兩位數)
画直线等分三角形的面积
兩組對邊相等的四邊形
拼砌四邊形
畫出對稱圖形
Discover Resources
機率分布圖
四邊形四個九點圓共點
學習單：三角形面積
四次函數圖形觀察
三心
Discover Topics
Matrices
Scatter Plot
Arithmetic
Surface
Rectangle