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勾股定理III (修改)
Author:
吳政憲
GeoGebra
New Resources
盈利與虧蝕
常见四边形是否是双心四边形
活动三：应用性质
科氏力 (Coriolis Force)
第八周作业1
Discover Resources
Ratio of angles at the centre and the length of the arcs.
冪函數
S4 Circle Theorems
中一︰棱柱的總表面面積-三角棱柱
圆锥的侧面展开图3D动画的副本
Discover Topics
Sphere
Vectors
Rectangle
Incircle or Inscribed Circle
Algebra