Question

A heritage stepwell is secured by a circular wire fence. Radius of this circle is $17.5metre$. Find the cost of fencing(in Rs) at the rate of $Rs.50$ per metre.

Answer 1

Given: Radius of circular wire fence $\left(r\right)=17.5m$

Cost of fencing $=Rs.50$ per $m$.

Therefore, Total cost of fencing $=Rs.50\times 2\pi r$

$=Rs.[50\times 2\times \frac{22}{7}\times 17.5]$

$=Rs.5500$