Respuesta :
Answer:
Area of Quadrilateral Using Coordinates
Subtract (2) from (1) and multiply the difference by 1/2 to get area of the quadrilateral ABCD.

If four coordinates are given then:-
- Find length of the sides using distance formula
[tex]\boxed{\sf \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}}[/tex]
- Now break down into two triangles .
- Use herons formula and find areas of the triangles .add them and get the area