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30度直角三角形
Author:
郭勇
GeoGebra
New Resources
兩位數除以一位數（二）
球体的体积推导
拼砌四邊形
画直线等分三角形的面积
兩位數除以一位數（一）
Discover Resources
quadrilaterals 4
Staff Development Temp
二次函数的值
矩阵（自动）计算（数据为0-5的随机数）
分数加法 Fraction Addition
Discover Topics
Algebra
Vectors 2D (Two-Dimensional)
Scatter Plot
Coordinates
Fractal Geometry