Question

area of a square field is 35721m².a man is walking along its boundary at a speed of 12km/hr.in how much time will he complete four rounds along the boundary?​

Answer 1

Area=35721m™2

ie, side™2 =35721

Side=189m

Perimeter =4x189

=756m

Total distance =756x4

=3024m

Speed=distance /time

time=distance /speed

=3024/10/3[12km/hr=10/3m/s]

=100.8sec

=1.68min