In this project, you will write a program to calculate the area of a triangle. You should define two "functions" and call these functions in the main function to test your program. Note: unit testing is performed for your functions. c++ bool isSidesValid (double a, double b, double c);

double area(double a, double b, double c);

#include
using namespace std;

int main() {

/* Type your code here. */

return 0;
}