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Rotation in the Coordinate Plane
Author:
Ngan Hok Hei
Rotation
GeoGebra
New Resources
画直线等分三角形的面积
三位數除以一位數（二）
GeoGebra笔记功能体验课件
第八周作业
三位數除以一位數（一）
Discover Resources
奧運5色環
Pythagorean Theorem Proof: Shearing
circle
圓柱圓錐
橢圓代數性質,光學性質,生活應用
Discover Topics
Arithmetic Operations
Complex Numbers
Median Value
Probability
Subtraction