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23第13题
Author:
袁正铎
GeoGebra
New Resources
圓的切線方程
圓的基本性質
正方形雪花图案
龙形曲线-分形龙
百分數及其應用
Discover Resources
幾何_圓2
拼貼
正多角柱(可輸入底面邊數)
勝者即正義，可愛即正義~
金惠吉：三维李萨如
Discover Topics
Fractions
Upper and Lower Sum or Riemann Sum
Variance
Arithmetic Mean
Incircle or Inscribed Circle