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九點圓 (9-Point Circle)
Author:
羅驥韡 (Pegasus Roe)
Topic:
Circle
九點圓 參考網址：
維基百科
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等的四邊形
兩位數加法
算柱 (兩位數)
直角坐標平面上的旋轉變換
Discover Resources
龍騰4_1-1課進7
國旗
GeoGebra Book
內公切線長
對稱01
Discover Topics
Addition
Probability
Symmetry
Bar Chart or Bar Graph
Geometry