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扇形面積
Author:
madeleineleung0928
GeoGebra
New Resources
三位數除以一位數（一）
兩位數除以一位數（一）
異分母分數減法
兩組對邊相等的四邊形
找出對稱軸
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圓周
vector1
旋轉方塊
旋轉+伸縮正多邊形
PA + PB
Discover Topics
Terms
Continuity
Intersection
Histogram
Function Graph