How to shorten these circles into arcs?

This is probably simple, but I'm having a heck of a time figuring it out! I have these construction geometry circles indicating where to put holes on this piece, but the circle is shown completely round and goes off the page. I know there is a way to just dimension the arc that the holes need to be built on, but I dont konw how. See attached pic of what it looks like now. Thanks!

-RYan

SolidworksDrawings And Detailing