Find the area of the triangle ABC with `A(1,-4)` and mid-points of sides through A being `(2,-1)a n d(0,-1)dot`

Explanation

let `E` be the mid point then,and `B=(x,y)`

`(x+1)/2=2` so, `x=3`

`(y+(-4))/2=-1` so,`y=2`

Thus,

`B=(3,2)`


Again let `F` be the mid-point of `AC`

then,

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