How do I make a solid from a flat drawing

I have drawn an outline for a “Daisy” I want to print it in 3D about 1/8" thick.

I created it by drawing a hexagon and then bulging out each edge with a 2 point arc.

I can select each pedal but I can’t get the center part to select so I can use the push pull to be able to print it in 3D. I’ve tried various tools but get a “not a solid” error. If I delete the line on the straight side and the select the “petal” it joins up with the center (hexagon) but the face can’t be selected. What am I doing wrong?

Daisy Outline.skp (89.2 KB)

Share the SketchUp model with us so we can see what you’ve created. Might be something simple such as needed to open a group or component for editing. Maybe it’s because there’s no face to extrude with Push/Pull.

Download the .skp file to your computer and then drag it into a reply.