Say you want a semi-circle and you want to split it in half.
Here’s how you do it.
Draw your circle
Select the knife tool
Holding down the ‘Option’ key on your Mac, with your shape selected, drag the knife across the circle in a straight line.
Now you should be able to drag one shape away from the other. Except this doesn’t always work for me (sometimes the whole shape wants to move).
In that case bring up the ‘Path Finder’ Window and with your newly cut shape highlighted select the ‘Minus Front’ option. That should cut away the bottom half of your shape.
And Voila! Half a circle with a nice contour around all the edges.
Links that help
http://jenniferbrowndesigns.blogspot.ca/2010/04/knife-tool-in-illustrator.html
John
Feb 08, 2017 @ 05:58:40
Thank you.
Julia
May 22, 2020 @ 18:37:42
great, and for those that don’t have macs what?
gayleo
Jul 21, 2020 @ 03:10:30
Thank you, this was the clearest and easiest tutorial to follow!
JR
Jul 24, 2020 @ 11:37:40
Welcome!
How do you cut a circle in half?
May 21, 2022 @ 10:45:32
How do I cut a circle in half in Indesign?
Jun 04, 2022 @ 16:48:13
How do I cut a circle in Illustrator?
Jun 22, 2022 @ 15:01:17
How do you make a half circle open in Illustrator?
Jul 01, 2022 @ 15:59:28
How do I make a circle around a circle in Illustrator?
Jul 04, 2022 @ 23:04:25