Question

The are of a square field is 60025 square meter. a man cycles along its boundary at 18km per hour. in how much time will he return at the starting point?

Answer 1

Area of the field=
We know the formula (for a square).
⇒60025=side²
⇒side=√60025
⇒side=+245 m
or
- 245 m.
Neglecting -ve value side=245 m.
⇒Perimeter=4*Side(For a square)
⇒P=245*4 m (Which is also the total distance)
⇒Speed= 18 km/h
⇒18 km/h=18* m/s=5 m/s.
⇒Time=49*4 seconds =196 seconds.
Ans:The required time is 196 seconds.
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Answer 2

i don't know your answer