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Drag the red dots, see the area ratio of EHFG to ABCD
Author:
johnmayhk
GeoGebra
New Resources
小数 的副本
算柱 (兩位數)
柱體建築師
三位數除以一位數（二）
兩位數加法
Discover Resources
tube15240
上色練習
Locus (Two points 2)
禪繞畫
纏繞畫1
Discover Topics
Intersection
Percentages
Hypergeometric Distribution
Hyperbola
Trapezium