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正方形与弦图
Author:
yiyi
GeoGebra
New Resources
平行線的判定
正方形雪花图案
三角函数 的副本
科氏力 (Coriolis Force)
折扣
Discover Resources
Roger Test Draw
近似值：小數位及有效數字
三角形的內角和+內心與外心
百葉窗
圆的面积展开的副本
Discover Topics
Percentages
Distributions
Calculus
Vectors 2D (Two-Dimensional)
Vectors 3D (Three-Dimensional)