Question

there is a circular pond and a foot runs along its boundary. a man walks around it exactly once,keeping close to the edge. if his step is 66cm long and he takes exactly 400 steps to go around the pond, what is the radius of the circular pond?

Answer 1

Each step is 66cm
Steps taken is 400
Total distance covered is 400×66cm = 26400cm=264m
This distance is also the circumference of circle
then
2πr=264 m
πr= 132m
r=132/π
r=132 × 7/22
r=6×7=42m
hence the radius of circular pond is 42m
.......

Answer 2

according to the question,
the total distance travelled =66×400=26400.
so circumference of circle =26400
2×22/7×r=26400
r=26400×7/44
r=4200cm.
radius of circle=4200cm .
pls mark the ans as brainliest.