physical object that has the attribute twelve-sided, having twelve sides
The name of a 12 sided figure is "Dodecagon" meaning 2+10. I will give you the angles for 12 sided object. Center angle is 30 degrees Miter angle is 75 degrees Bevel angle is 15 degrees To cut wood...
I am not positive but i think that a regular shaped object can be measured and an irregular can notHope this helps :D
it is called a nonagon.
pentadecagon (or quindecagon) or pentakaidecagon Your Welcome