Calculate the area of the polygon.

Is there a way to modify this code to calculate the area of the polygon pictured? I don't have much experience coding, and havent been able to figure it out?

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#include

using namespace std;

// (X[i], Y[i]) are coordinates of i'th point.

double polygonArea(double X[], double Y[], int n)

{

// Initialze area

double area = 0.0;

// Calculate value of shoelace formula

int j = n - 1;

for (int i = 0; i

{

area += (X[j] + X[i]) * (Y[j] - Y[i]);

j = i; // j is previous vertex to i

}

// Return absolute value

return abs(area / 2.0);

}

// Driver program to test above function

int main()

{

double X[] = {0, 2, 4};

double Y[] = {0, 3, 7};

int n = sizeof(X)/sizeof(X[0]);

cout

}

These are the hints below provided:

(6/5, 11/2) (9/2, 5) (3,4) (11/2,7/2) (16/5, 3/2) (6/5, 11/2) (9/2, 5) (3,4) (11/2,7/2) (16/5, 3/2)