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正十二面體
Author:
huang910316
GeoGebra
New Resources
画直线等分三角形的面积
柱體建築師
球体的体积推导
三位數除以一位數（一）
兩組對邊相等的四邊形
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色彩視覺藝術
單位圓上的三角函數
相似三角形證明-10306
最短
量度長度(厘米)
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Circumcircle or Circumscribed Circle
Stochastic Process or Random Process
Geometric Transformations
Secant Line or Secant
Trigonometric Functions