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三角形面積公式 1/2 bc sinA
Author:
羅驥韡 (Pegasus Roe)
Topic:
Area
GeoGebra
New Resources
錐體建築師
兩組對邊相等的四邊形
球體建築師
球体的体积推导（优化版）
畫出對稱圖形
Discover Resources
約分BB
多边形绕圆滚动
Tangent properties
橢圓關係
等分圓製作
Discover Topics
Tangent Function
Hypergeometric Distribution
Distributions
Solids or 3D Shapes
Differential Equation