I'm just looking how I could surround my drawing with a circle without leaving gaps.
screenshot svg file eyeballed what I'd like to accomplish, but without eyeballing if possible

It might be the case that I didn't looks hard enough for a solution on the internet, in which case I'm sorry

Maybe this:

http://tavmjong.free.fr/INKSCAPE/MANUAL/html/Clip-Clipping.html

Another way is to trace bitmap (play with settings) then I drew a triangle using the nodes on the tips of the ears and middle of bottom.

Then selected the triangle and Extensions Render /  Draw From Circle / Circumcircle to get the circle.

Just another option.

Pardon the Cat was just quick Gimp from your screenshot.

There are several ways to do this.

Mine involves drawing a surrounding rectangle, a diagonal line and an Extension.

Hello

Thank you for taking your time to answer my question. I didn't really expect anyone to respond to my problem, let alone three people. I'm thankfull for your time, and I'm sorry for asking a bad question, and not searching for a solution to my problem myself.

I have found a solutin to my problem on Stack Exchange

As far as I remember this is the first time I ever asked a question on an online forum, so I don't yet know how to ask good questions. Once again thank you for your time.