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角内切圆

Author:GeoGebra Institute of WuXi

位似指令的应用

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判斷球體
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
拼砌四邊形
画直线等分三角形的面积

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圓錐的展開圖
九點共圓
七巧板
Distance(距離公式)
S2 Chapter11.2 選擇適當的三角比

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Pyramid
Sphere
Random Variables
Congruence
Isosceles Triangles

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