Properties of arc show as fractions, not decimals - how to change?

[LarsT]

I am trying to calculate multiple arcs (to similate part of an ellipse) to determine the individual distances from certain parts of the ellipse, but when I double click on the arcs, the properties manager shows the arc lengths as fractions, and not very accurate ones. I want it to show decimal inches. I already have my dimension settings on decimal inches, but that doesn't help.

How do I get the properties manager to show me arc lengths in decimal inches?

Thanks!

[nestly]

Type UNITS at the command line, you'll figure it out from there.

[LarsT]

Thanks so much!! That worked, and it was so simple, which I like even more.