static void Main(string[] args)
{
double[] xn = new double[3];
double[] yn = new double[3];
for (int i = 0; i < 3; i++)
{
Console.Write("Введіть x{0}: ", i + 1);
xn[i] = Convert.ToInt32(Console.ReadLine());
Console.Write("Введіть y{0}: ", i + 1);
yn[i] = Convert.ToInt32(Console.ReadLine());
}
TTriangle tr = new TTriangle(xn, yn);
Console.WriteLine("a = {0}, b ={1}, c = {2}", tr.a(), tr.b(), tr.c());
Console.WriteLine("Площа: {0}" + "\n" + "Периметр: {1}", tr.Square(), tr.Perum());
}
TTriangle(TTriangle t)
{
A = t.a();
B = t.b();
C = t.c();
}