MA-2: Sliding Ladder

作者：Mark Dawes

A ladder 10m long (!) rests on horizontal ground against a vertical wall. As the foot of the ladder slips away from the wall, what is the locus of the centre of the ladder?

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cylinder and cone
Triangle
Quadrilaterals
Net of a Triangular Prism

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指數函數
平面
作圖
球形
角度

MA-2: Sliding Ladder

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