The sides of a triangle field are `325 m ,\ 300 m\ a n d\ 125 mdot` Its area is
`18750 m^2` (b) `37500 m^2` (c) `97500 m^2` (d) `48750 m^2`

Explanation

"Let the sides of the triangles be `a=325m, b=300m and c=125m`

semiperimeter of the triangle, `s=(a+b+c)/2`

`s=(325+300+125)/2`

`s=375`

Now, area of triangle by using heron's formula = `(ssqrt((s-a)(s-b)(s-c)))`

`(375sqrt((375-325)(375-300)(375-125)))`

`18750 m^2`

Hence, option (a) is correct."