Question

the area of a square field is 63504 metre square. how much time will a man take to complete one round along it's boundary, if he cycles at a constant speed of 26.88 km /h?

Answer 1

Answer:

area =s2

s2=63504

s=√63504

s=252

side of the square = 252 m

perimeter= 4s

252×4

=1008m

=1.008km

time = distance /speed

1.008/26.88

=0.0375 hr

Answer 2

Concept Introduction:

Area of square is $a^{2}$ and perimeter of square is given by $4a$.

Given: The area of a square field is $63504$ metre square.

To Find:

We have to find the value of, time taken by the man to cycle one round.

Solution:

According to the problem,

Area of a square field is $63504 m^2$.

∴ Side of square will be $\sqrt{63504} =252m$

Perimeter of the field is $4a=4*252=1008m=1.008km$

∴ Time taken by the man to complete one round is $1.008/26.88=0.0375hr=2.25minutes$.

Final Answer:

The value of time taken by the man to cycle one round is $2.25 minutes$.

#SPJ2