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GeoGebra
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GeoGebra
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最小周長
Author:
張庭瑞
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
球体的体积推导（优化版）
畫出對稱圖形
Discover Resources
雙曲線語橢圓
Roger Test Draw
Percentage
認識GeoGebra--相似三角形
多平面鏡反射成像
Discover Topics
Subtraction
Rotation
Triangles
Vectors
Square