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時鐘
Author:
戴宇宏
GeoGebra
New Resources
三位數除以一位數(二)
找出對稱軸
三位數除以一位數(一)
拼砌四邊形
第八周作业
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三角函數
角度比較
三圓相切
五上-CP4-第三节平行四边形面积1
完全图及其变形
Discover Topics
Quadrilaterals
Rectangle
Upper and Lower Sum or Riemann Sum
Tangent Function
Similar Triangles