Answer:
Area of rectangular field \[=\text{ }48\text{ }{{m}^{2}}\] One side = 6 m Other side \[=\frac{48}{6}=8\] m. Diagonal of rectangle \[=\text{ }\sqrt{{{8}^{2}}+{{6}^{2}}}\] \[=\text{ }\sqrt{64+36}\] = 10 m Lady covers 20 m in 1 minute Lady will cover 10 m in \[\frac{1}{2}\] min. or 30 sec.
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