I feel like this should be possible but can't find the right commands and/or search string.

I've got an imported sketch that I need to clean up by removing a whole load of arcs / circles (partial image below):

Obviously box selecting and deleting gets me where I want to go, but given the number of arcs and the geometry I'm working around it's a lot of selecting to do. I'm looking for a way of only selecting arcs of the same size and deleting those.

"Power Select" would probably work but that's only available once you're working with a 3D body.

I've tried selecting the arc I'm interested in deleting and doing Ctrl+A but that then selects all sketch entities rather than similar only.

Any thoughts?

Using SW19.