We are given radius of circle as 4m.
Now if a man walks around a circle means we are considering the circumference here.
Circumference of circle can be found with the formula:
Where r = radius of circle and pi = 3.14
plugging these values in the formula ,
Circumference = 25.12 m
Now distance covered by man when he walks around the circle once = 25.12m
distance covered by man when he walks around the circle 2.125 times = 25.12 *2.125 = 53.38 m
Answer : 53.38 m
