8. Use the following code to describe a rectangle. Assume the rectangle sides are parallel to the x and y axes (no rotation), and that the corners of the rectangle are located properly according to their compass designations in the structure.

struct point {

int x,y;

};

struct rect {

struct point ne,se,sw,nw;

};

Write a function called RectArea() that returns an integer value equal to the area of the given rectangle. The rectangle should be passed in as an argument.