一个有趣的几何问题——两个相切的动圆与两个定圆都相切,其切点轨迹是什么? 知乎 Template




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Try and sketch some of theseShuffleboard, Goldfish, Pioneer, Chili, Fishhook, Garters, Planet, Plank, Gold rush, Grump, view more ideas


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tomski一个有趣的几何问题——两个相切的动圆与两个定圆都相切,其切点轨迹是什么? 知乎 coloring