已知△ABC相似于△A'B'C',且他们的周长分别是20cm和24cm,AB=5cm,B'C'=8cm,求BC,AC,A'B',A'C'的长题本来就没有图
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![已知△ABC相似于△A'B'C',且他们的周长分别是20cm和24cm,AB=5cm,B'C'=8cm,求BC,AC,A'B',A'C'的长题本来就没有图](/uploads/image/z/5552219-11-9.jpg?t=%E5%B7%B2%E7%9F%A5%E2%96%B3ABC%E7%9B%B8%E4%BC%BC%E4%BA%8E%E2%96%B3A%27B%27C%27%2C%E4%B8%94%E4%BB%96%E4%BB%AC%E7%9A%84%E5%91%A8%E9%95%BF%E5%88%86%E5%88%AB%E6%98%AF20cm%E5%92%8C24cm%2CAB%3D5cm%2CB%27C%27%3D8cm%2C%E6%B1%82BC%2CAC%2CA%27B%27%2CA%27C%27%E7%9A%84%E9%95%BF%E9%A2%98%E6%9C%AC%E6%9D%A5%E5%B0%B1%E6%B2%A1%E6%9C%89%E5%9B%BE)
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