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符成岗
Author:
符成岗
GeoGebra
New Resources
异形操场
撒针估算面积实验
活动三：应用性质
第八周作业1
平行線的判定
Discover Resources
畢氏定理
第三冊2-2習題12
Orthocentre
圖解多項式的乘積
利用頂點描述二次函數 的複本
Discover Topics
Upper and Lower Sum or Riemann Sum
Quadrilaterals
Angles
Solids or 3D Shapes
Complex Numbers