What degree cut to make a dodecagon with wood?

To create a regular dodecagon (12-sided polygon) with wood, you need to make a degree cut of 30 degrees. This is because the internal angles of a dodecagon are each 150 degrees, and the exterior angles are 30 degrees (360 degrees divided by 12 sides). You can use this angle to cut the wood accurately for each of the 12 edges.