A string is used to show where the floor of a rectangular patio is to be laid.The width of the patio is to be half the length.If 12 meters of string just fit around the edges of the floor,what is the length of the patio?

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A string is used to show where the floor of a rectangular patio is to be laid.The width of the patio is to be half the length.If 12 meters of string just fit around the edges of the floor,what is the length of the patio?
A string is used to show where the floor of a rectangular patio is to be laid.The width of the patio is to be half the length.If 12 meters of string just fit around the edges of the floor,what is the length of the patio?

A string is used to show where the floor of a rectangular patio is to be laid.The width of the patio is to be half the length.If 12 meters of string just fit around the edges of the floor,what is the length of the patio?
天台的宽是长的一半,天台的周长是12米,求天台的长?
宽是6/(2+1)=2米
长是2*2=4米

以串鍊绕在矩形露台地板四周 ,露台的宽度是长度的一半 ,如果12米的串鍊刚好绕完地板四边
问 露台的长度若干?
宽度X 长度2X => (X+2X)*2=12 =>3X=6 => X=2 =>长度=4 米...ANS

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