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正5角錐
Author:
張丰耘
GeoGebra
New Resources
直角坐標平面上的旋轉變換
畫出對稱圖形
Fibonacci Clock
近似值：有效數字
算柱 (兩位數)
Discover Resources
幾何原理
數值滑桿
螢橋國中 周孟承
perimeter of rectangle
圆锥曲线的第二定义
Discover Topics
Statistics
Straight Lines
Quadratic Functions
Derivative
Fractions