bool Triangle::_isCorrect(double x, double y, double z)
{
	if (x + y <= z || x + z <= y || z + y <= x)
		return false;
	return true;
}

void Triangle::_updateAngles()
{
	angle1 = acos((side1 * side1 + side2 * side2 - side3 * side3) / (2.0 * side1 * side2)) / pi * 180;
	angle2 = acos((side1 * side1 + side3 * side3 - side2 * side2) / (2.0 * side1 * side3)) / pi * 180;
	angle3 = acos((side2 * side1 + side3 * side3 - side1 * side1) / (2.0 * side2 * side3)) / pi * 180;
}