Question

slove it's fast
slove it's fast
slove it's fast​

Answer 1

Step-by-step explanation:

Given

• The area of the square field
• Speed

To Find:

• Time take by him to go round the field once

Solution:

Area of the field=4900

Side=√Area=√4900=70m

Perimeter of field=4×side

→4×70

→280m

Formual Used-

$\boxed{ \frak{ \green{Time = \frac{Distance}{Speed} }}}$

So,

Speed=4km/hr=(4×5/18)m/sec=10/9m/sec

Distance=Perimeter of field=280m

Time=Distance/Speed=280/10/9=280×9/10=252 sec