Hi!
 
I have a small problem in the 2d sketch.
Is there any easy way to dimension an arc lenght directly?
I`ve been looking for this for a while, but I can`t see that there is...
 
Also, how can I measure an arc length?
 

See the Related tips (depending on Inventor version):
http://www.cadforum.cz/cadforum_en/qaID.asp?tip=5711
http://www.cadforum.cz/cadforum_en/qaID.asp?tip=4836
 

OK. thanks!