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Summary
Author:
iedc
GeoGebra
New Resources
【案例】2013年安徽高考15题
画直线等分三角形的面积
兩位數除以一位數(二)
兩位數除以一位數(一)
錐體建築師
Discover Resources
My first Geogebra Book
任何三角形內角和180度(五上數翰4-2)
ttyy
星星
Copy of 銳角三角:sin, cos
Discover Topics
Statistics
Constructions
Geometric Distribution
Confidence Interval
Median Line