Question

the area of square field is 540225metre square. A man cycle along its boundary at 36 km / h . In how much time will he return at starting point ?

Answer 1

Answer:

294 seconds is the crct answer

Answer 2

Answer:

Area of square field=540225m²

=side²=540225m²

=side=√(540225m²)

=side=735m

Since the man cycles along the boundary ,distance he travelled is the Perimeter of the field.

=4×side

=4×735m

=2940m

=2.940km

Now, speed=36km/h

=distance/time=36km/h

=time=distance/(36km/h)

=time=2.940km/(36km/h)

=time=0.08166 h

=time=0.8166×60 minutes

=time=4.9 minutes