Не работает,на границе

#include <iostream>
#include <cmath>
using namespace std;
float x, y;
int main()
{
	cout << "Input x" << endl;
	cout << "Input y" << endl;
	cin >> x;
	cin >> y;
	if (y < abs(y) && (pow(x, 2) + pow(y, 2)) < 100){
		cout << "V oblasti" << endl;
	}
	else if (y> abs(y) && pow(x, 2) + pow(y, 2) == 100){
		cout << "Na granice" << endl;
	}
	else cout << "Za predelami" << endl;
	system("pause");
	return 0;
}