Inventor - Center lines on slot featurs

callout error Read the blog here: https Hole Callout in SolidWorks, Dimensions Necessary

or if not, what is a better way to make the callout? Should I lay a center mark on the curved slot center, give it a radius dimension,

slot paling hoki Comments · Hole Callout in SolidWorks, Dimensions Necessary for Drilled and Tapped Holes

slot machine pyramid quest for immortality  1 Rading Dimensioning Radius dimensions help to call out slots, curves, arcs, rounds, and fillets Each radius value on a radius dimension is preceded