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七巧板.ggb
Author:
郭勇
GeoGebra
New Resources
盈利與虧蝕
龙形曲线-分形龙2
多邊形的面積
祖冲之的期望：内棋与外棋
圓的基本性質
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测试网页
堆朵3邊形(試算表版)
圓繞圓外
圓心在同一直線上且相切的圓(半徑可改變)
多邊形的面積
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Translation
Means
General Quadrilateral
Arithmetic
Limits