(Geometry: area of a triangle) Write a function that returns the area of a triangle using...

(Geometry: area of a triangle) Write a function that returns the area of a triangle using the following header:

const int SIZE =2 ;double getTriang1eArea(const double points[][SIZE]);

The points are stored in a 3 × 2 two-dimensional array points with (points[0] [0] , points[0][1]) for (x1 , y1). The triangle area can be computed using the formula in Programming Exercise. The function returns 0 , if the three points are on the same line. Write a program that prompts the user to enter two lines and display the intersecting point. Here is a sample run of the program:

(Geometry: area ofa triangle) Write a program that prompts the user to enter three points (x1 , y1), (x2 , y2), (x3 , y3) of a triangle and displays its area. The formula for computing the area of a triangle is