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正4正8黏合v2
Author:
Wu Xiao-Ren
GeoGebra
New Resources
兩位數除以一位數（二）
拼砌四邊形
兩組對邊相等的四邊形
兩位數除以一位數（一）
四邊形的特性
Discover Resources
繪圖練習
Heat Sink Fin
小青蛙
五角星
纏繞畫1
Discover Topics
LCM and GCD
Median Value
Inequalities
Linear Programming or Linear Optimization
Geometry