平行线上有一组平行线,且相邻平行线间的距离为3cm,把一枚半径为1cm的硬币任意抛掷在这个平面上,则硬币不与任何一条平行线相碰的概率是?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 23:45:04
![平行线上有一组平行线,且相邻平行线间的距离为3cm,把一枚半径为1cm的硬币任意抛掷在这个平面上,则硬币不与任何一条平行线相碰的概率是?](/uploads/image/z/10414983-39-3.jpg?t=%E5%B9%B3%E8%A1%8C%E7%BA%BF%E4%B8%8A%E6%9C%89%E4%B8%80%E7%BB%84%E5%B9%B3%E8%A1%8C%E7%BA%BF%2C%E4%B8%94%E7%9B%B8%E9%82%BB%E5%B9%B3%E8%A1%8C%E7%BA%BF%E9%97%B4%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BA3cm%2C%E6%8A%8A%E4%B8%80%E6%9E%9A%E5%8D%8A%E5%BE%84%E4%B8%BA1cm%E7%9A%84%E7%A1%AC%E5%B8%81%E4%BB%BB%E6%84%8F%E6%8A%9B%E6%8E%B7%E5%9C%A8%E8%BF%99%E4%B8%AA%E5%B9%B3%E9%9D%A2%E4%B8%8A%2C%E5%88%99%E7%A1%AC%E5%B8%81%E4%B8%8D%E4%B8%8E%E4%BB%BB%E4%BD%95%E4%B8%80%E6%9D%A1%E5%B9%B3%E8%A1%8C%E7%BA%BF%E7%9B%B8%E7%A2%B0%E7%9A%84%E6%A6%82%E7%8E%87%E6%98%AF%3F)
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