Question

the area of a square field is 60025 metre square. A man cycles along its boundary at 18 km per hour. In how much time will he returned to the starting point ?​

Answer 1

Answer:Area of the field= 60025m^2

We know the formula

area =side^2 (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*5/18 m/s=5 m/s.

⇒Time= distance/speed

⇒ 245*4/5 sec

=49*4 seconds

=196 seconds.

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