The perimeter of a $35 m$ wide rectangular field is $190 m$ . Find its area.

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Solution

$\begin{matrix} b r e a d t h = 35 P e r i m e t e r o f r e c t a n g l e = 190 \Rightarrow 2 \times (l e n g t h + b r e a d t h) = 190 \Rightarrow 2 \times (l e n g t h + 35) = 190 \Rightarrow l e n g t h = \frac{190}{2} - 35 l e n g t h = 95 - 35 \Rightarrow l e n g t h = 60 m A r e a = l e n g t h \times b r e a d t h = 60 \times 35 = 2100 m^{2} \end{matrix}$

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