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軌跡三︰移動點與一固定線段保持固定距離(運動場跑道)
Author:
lamanleung
GeoGebra
New Resources
常见四边形是否是双心四边形
百分數及其應用
圓的基本性質
正方形雪花图案
讀磅
Discover Resources
優良作品2(怡婷)
Box method for multiplication
zuiduan
Ex5C#15
AirParcel
Discover Topics
Trigonometry
Square
Symmetry
Mathematics
Polygons