Microsoft Small Basic

Program Listing:

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<object id='sbapp' data='data:application/x-silverlight-2,' type='application/x-silverlight-2' width='640' height='480'>
    <param name='source' value='http://smallbasic.com/program/ClientBin/SBWeb.xap'/>
    <param name='onError' value='onSilverlightError' />
    <param name='background' value='white' />
    <param name='minRuntimeVersion' value='3.0.40624.0' />
    <param name='autoUpgrade' value='true' />
    <param name='initParams' value='programId=WKN265' />
</object>

sides = 50

length = 400 / sides

angle = 360 / sides

Turtle.Speed = 9

For j = 1 To 20

   For i = 1 To sides

     Turtle.Move(length)

     Turtle.Turn(angle)

   EndFor

   Turtle.Turn(18)

EndFor