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勾股定理
Author:
王争
Topic:
Pythagoras or Pythagorean Theorem
GeoGebra
New Resources
球体的截面
折扣
双心四边形
常见四边形是否是双心四边形
平行線的判定
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An angle problem
複合棒形圖: 圖一
Copy of Liu Hui's Method of Finding π
鋪地磚(六邊形)
wiki
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Logarithmic Functions
Distributions
Step Functions
Congruence
Geometric Transformations