public double GetRadius()
{
// The adapter pretends that it's a round peg with a
// radius that could fit the square pet that the adapter
// actually wraps
return(peg.GetWidth() * Math.Sqrt(2) / 2);
}
public SquarePegAdapter(SquarePeg peg) : base(peg.GetWidth())
{
this.peg = peg;
}