static void Main(string[] args)
{
Krug k = new Krug(5);
Treugolnik t = new Treugolnik(4, 4, 5);
Console.WriteLine(SAll.S(k));
Console.WriteLine(SAll.S(t));
Console.WriteLine(Treugolnik.TruePrTreugolnik(t));
}
public static bool TruePrTreugolnik(Treugolnik t)
{
double[] tr = { t.A, t.B, t.C };
Array.Sort(tr);
if ((tr[0] * tr[0] + tr[1] * tr[1]) == tr[2] * tr[2])
{
return(true);
}
else
{
return(false);
}
}
public static double S(Treugolnik t)
{
double p = (t.A + t.B + t.C) / 2;
return(Math.Sqrt(p * (p - t.A) * (p - t.B) * (p - t.C)));
}