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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MG Euler's DS Thm
WILBERS_ROTATION #2
Angles in Circles
Angle of Elevation & Depression
(a+b)^3=a^3+b^3+3a^2b+3ab^2

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矩陣
周長
正方形
雙曲線
整數

MA-2: Sliding Ladder

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