The area of a square field is 9.68 hectares .How long will a man take to walk along its diagonal at the speed of 8 4/5 km per hour
Answers
Answered by
0
Explanation:
speed = 44/5 km/hr = 44/5 *10^3 m/hr
1 hectare = 10000 m^2
9.68 hectare = 9.68*10^4 m^2
area of a square = side square
therefore
side^2 = 9.68*10^4
taking square root = 3.11*10^2 m
diagonal of square = 3.11*10^2*√2
= 4.4 *10^2 m
time taken by man
=distance/speed=4.4*10^2/(44/5*10^3)
= 0.5*10^-1 = 0.05 hours
= 0.05*60 = 3 mins
Similar questions