: How to create a circular diagram with Illustrator I need help to create a circular diagram in Illustrator like this. I need precisely to represent a percentage. How to do that ? Thank you.

@Barnes313

in Illustrator CC-2014:

Create the circle:



Apply the stroke with the desired fill color:



Place guides in the center:



Copy circle and apply it to a new layer with Edit -> Paste in Place.
Lock Layer 1 and select Layer 2:



Grab the Line Segment Tool and hold down the shift and drag the length in the center:



Use the Align panel and select the dragged line and circle:



Copy and paste in place a new line segment than rotate it with the rotate tool and it will tell you the percentage of rotation:



Select just the line segments and go to pathfinder and click outline then delete the bottom two anchor points with the direct selection tool:



Select everything on Layer 2 and click the outline again and delete all unneeded anchors with the Direct Selection Tool:



You should be left with 15% of the circle.

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