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标题: 弱弱再问GWD数学一道题 [打印本页]

作者: tobytracy    时间: 2010-2-5 15:57
标题: 弱弱再问GWD数学一道题


In the figure shown, two identical squares are inscribed in the rectangle.  If the perimeter of the rectangle is 18√2, then what is the perimeter of each square?[table=undefined][tr][td][td][/td][tr][td] [/td][td]8√2 [/td][/tr][tr][td][td][/td][tr][td] [/td][td]12 [/td][/tr][tr][td][td][/td][tr][td] [/td][td]12√2 [/td][/tr][tr][td][td][/td][tr][td] [/td][td]16 [/td][/tr][tr][td][td][/td][tr][td] [/td][td]18 [/td][/tr][/td][/tr]
作者: jeannefq    时间: 2010-2-5 22:33
正方形边长为x,那么,长方形的宽是√2x,长是2√2x,那么就是说3√2x=18√2,x=6
正方形的周长就是24




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