A) \[35\sqrt{2}\,\,m\]
B) \[175\sqrt{2}\,\,m\]
C) \[490\,\,m\]
D) \[5\sqrt{2}\,\,m\]
Correct Answer: A
Solution :
Let breadth of plot = x m \[\therefore \] length = 5x m According to the question, \[\frac{5{{x}^{2}}}{2}=245\] \[\Rightarrow {{x}^{2}}=\frac{245\times 2}{5}=98\,\,\,\,\,\,\,\,\therefore \,\,\,x=7\sqrt{2}\,\,m\] \[\therefore \]Length\[=5\times 7\sqrt{2}=35\sqrt{2}\,\,m\]
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