Set slope value for roof - inaccuracies

Revit
1

Hi,
its friday and i don’t understand this problem;)
Could some tell me, why the slope is not set correct and how i can fix this?

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I try to set the slope to (10°,45°,10°,45°) but in Revit i get the result: (9.9,38.15,9.9,38.15)
Here are some links about this topic…but I do not understand it:(

http://thebuildingcoder.typepad.com/blog/2010/08/slope-is-slope-not-radians.html

2

ok, now i got it:)

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