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保持比例

Author:hjyanghj

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判斷球體
Nested spiral octagon
四邊形的特性
Earth with coastline
sanjiaohanshu

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Maths p1
二次函數：過任意三點，求函數關係式
多物件逐一動畫
三角形的心
兩函數間面積的複本

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Geometric Mean
Line Segment
LCM and GCD
Scalene Triangles
Unit Circle

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