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勾股定理
Author:
yiyi
GeoGebra
New Resources
常见四边形是否是双心四边形
第八周作业3
平行線的判定
活动三：应用性质
科氏力 (Coriolis Force)
Discover Resources
Task 3 Isosceles Triangle
代數運算：外心座標
直向橢圓
梯形的面積
开关灯小游戏
Discover Topics
Scalene Triangles
Parametric Curves
Square
Pythagoras or Pythagorean Theorem
Surface