11. Determine the perimeter and cost of fencing the triangular plot

The sides of a triangular park are 13 \(m\), 13 \(m\) and 21 \(m\). The cost of fencing the triangular park is \(₹\)21 \(per \ meter\). Find the perimeter of the triangular park and the total cost of fencing the triangular park.

 

The perimeter of the triangular park \(=\)  \(m\)

 

The total cost of fencing the triangular park \(= \ ₹\)