Screen shot, only example at 90 degrees is incorrect.
probat90.PNG (image/png), 14.64 KB, created by mathog on 2012-01-18 09:17:37 UTC
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Creator: mathog
Created: 2012-01-18 09:17:37 UTC
Size: 14.64 KB
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Attachments on bug 34897: 44000 | 55697 | 55702 | 55744 | 55747

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