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[几何] 西姆松线 相似中心的轨迹

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hbghlyj posted 2020-7-19 01:24 |Read mode
设P,Q,R在外接圆上,QR平行于点P的西摩松线,则PR与PQ分别平行于Q,R的西摩松线.这三条西摩松线形成的三角形顺相似于PQR.当QR平行于固定的P的西摩松线而移动时,确定位似中心的轨迹.
几何画板显示位似中心S随Q运动的轨迹为线段☞ -68dd7364288aff32.jpg

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original poster hbghlyj posted 2022-11-21 20:50

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