Hi,



The length is 3m more than the width.

 Let x and (x+3m) represent the width and length respectively

Question states***

  2(x+3m) + 2x = 70m

        4x = 64m

         x = 16m, the width.  The length is 19m

 

CHECKING our Answer***  

   32m + 38m = 70m

A. √30, 5, 6, │-7 │ B. │-7│ ,5,6, √30 C. │-7│, 5, √30, 6 D. 5, √30, 6, │-7 │

Note: |-7| = 7 and  = 5.4772 

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