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扇形面積
Author:
madeleineleung0928
GeoGebra
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科赫雪花
盈利與虧蝕
常见四边形是否是双心四边形
龙形曲线-分形龙
圓的基本性質
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南瓜趣臉
proof ASA
圖解定理公式與切割組合
圖形的周界
Copy of 圓周公式應用題2
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Trigonometric Functions
Kite
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Quadrilaterals
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