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Answer :

Answer:

Step-by-step explanation:

length = area ÷ width

          = 230 ÷ 12 1/2

          = 230 ÷  25/2

         [tex]= 230*\dfrac{2}{25}\\\\= 46*\dfrac{2}{5}=\dfrac{92}{5}\\\\=18\dfrac{2}{5}[/tex]