The perimeter of a triangular field is `450\ m` and its sides are in the ratio `13 : 12 : 5.` Find the area of the triangle.

Explanation

Perimeter of field is `450` m (given)
Perimeter is sum of all sides________( `1 `)
Ratio of sides are `13 : 12 : 15`
Let side be `x`
According to statement `1`
`=> 13x + 12x + 5x = 450`
`=> 30x = 450`
`=> x = 15m`
So ,Sides :
`13 xx 15 = 195 m`
`12 xx 15 = 180 m`
`15 xx 15 = 225 m`