public override bool Equals(object obj)
{
if (!(obj is Triangle))
{
return(false);
}
Triangle tr2 = obj as Triangle;
double[] array1 = this.GetSidesLengths();
double[] array2 = tr2.GetSidesLengths();
HashSet <int> usedIndexes = new HashSet <int>();
for (int i = 0; i < array1.Length; i++)
{
for (int j = 0; j < array2.Length; j++)
{
if (!(usedIndexes.Contains(j)))
{
if (System.Math.Abs(array1[i] - array2[j]) < System.Double.Epsilon)
{
usedIndexes.Add(j);
break;
}
}
}
}
if (usedIndexes.Count == 3)
{
return(true);
}
return(false);
}
