Question

There is circular pond and footpath runs along its boundary. A man walks around it,exactly once,keeping close to the edge. If his step is 44 cm long and he takes exactly 600 steps to go around the pond, what is the radius of the pond?

Answer 1

perimeter of circular pond = 600 * 44cm
= 26400 cm
= 264 m

now,
perimeter of circular pond = 264m = 26400 cm
2πr = 264m = 26400 cm
πr = 132m = 13200 cm
r = 132/3.14m = 13200/3.14 cm
r = 42 m = 4200 cm (approx)