how long will a man take to bicycle round a square field of side 1200 m if his speed is 8 km
Hello,
Even if it is a square field, the diameter of circle will be equal to the side of square.
Side of Square = 1200m
Hence, Diameter = 1200m
So, Distance covered = Circumference of Circle
So, Distance covered = π x D
So, Distance covered = 3770 m
Now, Distance = Speed / Time
8 km/hr = 2.22 m/s
So, Time = 3770 / 2.22
So, Time = 1698 sec.
or Time = 28.3 minutes.
Best Wishes.