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迭帶
Author:
余銘芬
GeoGebra
New Resources
球體建築師
錐體建築師
兩組對邊相等的四邊形
三位數除以一位數（二）
四邊形的特性
Discover Resources
兩個點波源產生的波紋
Ratio of angles at the centre and the length of the arcs.
抛物线的参数方程
一元二次方程式-應用問題(兩圓相切-3)
任意三角形兩不等圓v3
Discover Topics
Trigonometry
Hypergeometric Distribution
Dilation
Square
Confidence Interval