#include <iostream>
using namespace std;

struct point
{
	double x, y;
};

struct triangle
{
	point points[3][3];
};

bool is_true(triangle xy[3][3], point itsPoint)
{

}



int main()
{
	point isPoint;
	triangle tr;
	double x, y;

	for (int i = 0; i != 3; i++)
	{
		cout << "Enter the location of triangle's x and y" << endl;
		cin >> x; cin >> y;

		tr.points[3][3] = { x, y };
	}

	cout << "Another point what's belong (or not) to the triangle : "; cin >> isPoint.x >> isPoint.y;

	is_true(tr.points[3][3], isPoint);


}