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數學傳播39卷4期, 平面幾何公式思考
Author:
Yu-Tuan Lin
GeoGebra
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兩位數除以一位數（一）
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
兩位數加法
球體建築師
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Polygonal numbers
三角形3,4,5
畢氏定理拼圖007(8片)
畢氏定理完成20170330final
projection01 by Mr LO WY
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Integers
Incircle or Inscribed Circle
Cube
Pie Chart or Circle Chart
Parametric Curves