Find the cost of laying grass in a triangular field of sides `50` `m`, `65` `m` and `65` `m` at the rate of rupee `7` per `m^(2)`.

Explanation

To find the cost of laying grass in a triangular field with sides of 50 m, 65 m, and 65 m at the rate of ₹7 per m², we will follow these steps:

### Step 1: Identify the sides of the triangle
The sides of the triangular field are:
- \( a = 50 \, m \)
- \( b = 65 \, m \)
- \( c = 65 \, m \)

...