当圆规两脚间的距离为3厘米时,画出圆的周长是()厘米,面积是()平方厘米0.35= ()/()( )∶( )=()/(25)( )%两个圆的半径分别是75px和125px,它们的周长的比是( ),面积的比是(
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![当圆规两脚间的距离为3厘米时,画出圆的周长是()厘米,面积是()平方厘米0.35= ()/()( )∶( )=()/(25)( )%两个圆的半径分别是75px和125px,它们的周长的比是( ),面积的比是(](/uploads/image/z/2087733-21-3.jpg?t=%E5%BD%93%E5%9C%86%E8%A7%84%E4%B8%A4%E8%84%9A%E9%97%B4%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BA3%E5%8E%98%E7%B1%B3%E6%97%B6%2C%E7%94%BB%E5%87%BA%E5%9C%86%E7%9A%84%E5%91%A8%E9%95%BF%E6%98%AF%28%29%E5%8E%98%E7%B1%B3%2C%E9%9D%A2%E7%A7%AF%E6%98%AF%EF%BC%88%EF%BC%89%E5%B9%B3%E6%96%B9%E5%8E%98%E7%B1%B30.35%3D+%EF%BC%88%EF%BC%89%2F%EF%BC%88%EF%BC%89%EF%BC%88+%EF%BC%89%E2%88%B6%EF%BC%88+%EF%BC%89%3D%EF%BC%88%EF%BC%89%2F%EF%BC%8825%EF%BC%89%EF%BC%88+%EF%BC%89%25%E4%B8%A4%E4%B8%AA%E5%9C%86%E7%9A%84%E5%8D%8A%E5%BE%84%E5%88%86%E5%88%AB%E6%98%AF75px%E5%92%8C125px%2C%E5%AE%83%E4%BB%AC%E7%9A%84%E5%91%A8%E9%95%BF%E7%9A%84%E6%AF%94%E6%98%AF%EF%BC%88+%EF%BC%89%2C%E9%9D%A2%E7%A7%AF%E7%9A%84%E6%AF%94%E6%98%AF%EF%BC%88)
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