Simplest way to determine if class x is derived from class y? (c#)

Question

Is this the simplest way to determine if foo is the same or derived from type T

bool Derives<T>(object foo)
{
  return foo is T;
}

and an exact match would be

bool ExactMatch<T>(object foo)
{
  return foo.GetType() == typeof(T);
}

Answer 1

I can't think of a simpler way :)

(and in 'answer' format, to please the trolls: "Yes")