A man walks along the diagonal side of a square field at the rate of 10 kmph for 30 minutes.whaat is the area of the square field?(in sq.km).
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Step-by-step explanation:
Speed of man,
= 4 kmph =
4×5184×518
m/sec
In 3 min (180 sec) man will go =
20×180820×1808
= 200 m.
That means the diagonal of the square field = 200 m.
Diagonal of square,
= Side of Square ×
2–√2
= 200 m.
→ Side of Square =
2002–√2002
Area of Square = Side2
Area =
200×2002200×2002
= 20000 sqm.
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