Yet another pizza-slice stencil for Petri dishes

Usage:

1. Place over the back of the petri dish.
2. Draw a line.
3. Rotate the stencil until the marks match the line you just drew.
   • The internal circle of markings has 12 divisions, for 30º pizza slices.
   • The external circle of markings has 16 divisions, for 22.5º pizza slices.
4. Repeat steps 2-3 until done. You may choose or skip markers as needed, or ignore them completely.
5. Enjoy your pizza stencil.