1. Module Module1
Sub Main()
Dim keliling As Func(Of Integer, Single) =
Function(a)
Return 2 * 3.14 * a
End Function
Dim jari As Integer
Console.WriteLine("Masukkan panjang jari-jari : ")
jari = Console.ReadLine()
Console.WriteLine("keliling lingkaran adalah : ")
Console.WriteLine(keliling(jari))
Console.ReadKey()
End Sub
End Module