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Public Class Form1

        Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
            Me.AutoSize = True : Me.Text = "Graph by Your ID"
            PictureBox1.Top = 0 : PictureBox1.Left = 0
            PictureBox1.Width = 500 : PictureBox1.Height = 500
            Button1.Text = "Draw" : Button1.Font = New Font("Courier", 20)
            Button1.Width = 115 : Button1.Height = 50
            Button1.Top = 10 : Button1.Left = PictureBox1.Width + 50
        End Sub

        Private Sub Button1_Click(sender As Object, e As System.EventArgs) Handles Button1.Click
         Dim myGraph As Graphics = PictureBox1.CreateGraphics
        Dim myPen1, myPen2, myPen3 As Pen
        Dim id, ang, bigR, x1, y1 As Single
        myPen1 = New Pen(Color.Blue, 5) : myGraph.DrawRectangle(myPen1, 0, 0, 500, 500)
        myPen2 = New Pen(Color.Gray, 1)

        myGraph.TranslateTransform(500, 0)
        myPen3 = New Pen(Color.DarkMagenta, 6)
        bigR = 400
        For id = 0 To 90 Step 2
            ang = id * Math.PI / 180
            x1 = bigR * Math.Cos(ang) : y1 = bigR * Math.Sin(ang)
            myGraph.DrawLine(myPen3, 0, y1, -x1, y1)
        Next
    End Sub
    End Class