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111mathA
Author:
Wu Xiao-Ren
GeoGebra
New Resources
祖冲之的期望:内棋与外棋
兩位數除以一位數(一)
画直线等分三角形的面积
漂亮的摇摆曲线
三位數除以一位數(一)
Discover Resources
練習
Quiz on Conditions for Congruence of Triangles 全等三角形的判定條件:測驗
蝴蝶線 butterfly line
S2,3,5 Statistics
分蛋糕
Discover Topics
Difference and Slope
Conic Sections
Equilateral Triangles
Constructions
Straight Lines