Answers

2015-01-21T09:56:33+08:00
24dm The formulas of perimeter is P= L+L+W+W Which is length 3.5dm then weidth is 8.5dm 3.5 dm + 3.5dm 8.5dm+ 8.5dm L=7 W=17 =24
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2015-01-23T14:00:05+08:00

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24 dm. is the perimeter
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