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Author:
杨欣霞
GeoGebra
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兩組對邊相等的四邊形
球体的体积推导
柱體建築師
画直线等分三角形的面积
球體建築師
Discover Resources
補角關係
ggb-fs-a2
GGB8
双曲椭圆
Addition and Subtraction of Directed Numbers (2)
Discover Topics
Linear Programming or Linear Optimization
Root
Trapezoid
Line Segment
Constructions