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三角形的邊長
Author:
Sin Wai Man Mandy
GeoGebra
New Resources
錐體建築師
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
球体的体积推导（优化版）
四邊形的特性
Discover Resources
Division Algorithm 除法算法
圓柱截痕
Introduce Tangent Ratio
旋转文本
gmj106a12 旋轉矩陣與面積
Discover Topics
Piecewise Functions
Parallelogram
Power Functions
Solids or 3D Shapes
Fractions