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Rotation in the Coordinate Plane
Author:
Ngan Hok Hei
Rotation
GeoGebra
New Resources
判斷球體
第八周作业
画直线等分三角形的面积
球体的体积推导（优化版）
畫出對稱圖形
Discover Resources
test
空間向量座標
圓內接四邊形任務一: 提示二
圖一
venn图着色
Discover Topics
Difference and Slope
Special Points
Pyramid
Pythagoras or Pythagorean Theorem
Normal Distribution