Question

Triangle sides coordinate geometry formula

Answer 1

If the Three Points are (x1 , y1) , (x2 , y2) & (x3 , y3)
then the area of the Triangle by using Coordinate Geometry formula

$\frac{1}{2} |y1(x2 - x3) + y2(x3 - x1) + y3(x1 - x2)| \: unit^{2}$

Or,

1/2|x1(y2-y3)+x2(y3-y1)+x3(y1-y2)| unit^2

Hope it will help you .