The area of corcular playground is 22176 m*m. Find the cost of fencimg this ground at the raye of Rs per 50 metre
a = πr^2
r^2 = a/π
so, the circumference is
c = 2πr = 2π√(a/π) = 2√(22176π) = 527.89 m
so the cost is that length times the cost per meter.
Your posting has that last bit garbled.