Extrude Help

 From:  jetblast 5 May 2015  (1 of 4) 
7380.1 
I'm trying to extrude these shapes. One works the other doesn't.
Any help would be appreciated.

Thanks.
Attachments:
Attachmenttest extrude.3dm

Image Attachments:
Size: 1.1 MB, Downloaded: 37 times, Dimensions: 1920x1080px