Question

What is the cost of fencing a triangular park of each side 15.2 m at the rate of Rs. 25 per metre?

Answer 1

$$\begin{gathered} \mathrm{Given},\mathrm{side}\mathrm{of}\mathrm{triangular}\mathrm{park}=15.2\mathrm{m} \\ \mathrm{Perimeter}\mathrm{of}\mathrm{triangular}\mathrm{park}=3\times 15.2\mathrm{m}=45.6\mathrm{m} \\ \mathrm{Cost}\mathrm{of}\mathrm{fencing}=\mathrm{Rs}25\mathrm{per}\mathrm{meter} \\ \mathrm{Thus},\mathrm{the}\mathrm{total}\mathrm{cost}\mathrm{of}\mathrm{fencing}=45.6\times 25=\mathbf{Rs}\mathbf{}\mathbf{1140}\mathbf{} \end{gathered}$$