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Apollonius Problem gergonne 1
Author:
tkyggb
GeoGebra
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异形操场
圓的基本性質
比較五件物件的重量
活动三：应用性质
正方形雪花图案
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根據百分率找數量（二）: 例1
動圓定圓兩圓內切動圓圓心軌跡
創作對稱圖形 LEVEL 4
雙曲線的副本
拋物線3--平行四邊形法
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Distributions
Diagrams
Interest Calculation
Percentages
Curve Sketching