如图所示,铁道口栏杆的短臂(OA)长1.25m,长臂(OB)长16.5m,当短臂端点下降(由A到C)0.85m时,长臂端点升高(由B到D)了多少?(不计栏杆的宽度)
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![如图所示,铁道口栏杆的短臂(OA)长1.25m,长臂(OB)长16.5m,当短臂端点下降(由A到C)0.85m时,长臂端点升高(由B到D)了多少?(不计栏杆的宽度)](/uploads/image/z/10424034-18-4.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E9%93%81%E9%81%93%E5%8F%A3%E6%A0%8F%E6%9D%86%E7%9A%84%E7%9F%AD%E8%87%82%28OA%29%E9%95%BF1.25m%2C%E9%95%BF%E8%87%82%28OB%29%E9%95%BF16.5m%2C%E5%BD%93%E7%9F%AD%E8%87%82%E7%AB%AF%E7%82%B9%E4%B8%8B%E9%99%8D%28%E7%94%B1A%E5%88%B0C%290.85m%E6%97%B6%2C%E9%95%BF%E8%87%82%E7%AB%AF%E7%82%B9%E5%8D%87%E9%AB%98%28%E7%94%B1B%E5%88%B0D%EF%BC%89%E4%BA%86%E5%A4%9A%E5%B0%91%3F%EF%BC%88%E4%B8%8D%E8%AE%A1%E6%A0%8F%E6%9D%86%E7%9A%84%E5%AE%BD%E5%BA%A6%EF%BC%89)
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