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1. What will be the length of the diagonal of that square plot whose area is equal to the area of a rectangular plot of length 45 metres and breadth 40 metres ?

A. 45.5 metres

B. 60 metres

C. 75 metres

D. Data inadequate

Solution:

\begin{aligned} Area : \\ = (45 \times 40) m^{2} \Leftrightarrow \frac{1}{2} \times {(Diagonal)}^{2} \\ = 1800 \Leftrightarrow Diagonal \\ = 60 m \end{aligned}

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