4 pi inches
I've measured mine for you, it was ten and a half inches or 26.7cm
Half a torus - a donut cut into a semi-circular disc.
A cylinder, or a torus (donut) with a chunk removed.
Half a torus. A torus is a doughnot (donut) shape.
The the center of the donut , more specifically the center of the hole of the donut. Considering the donut is perfectly symmetrical we only need to look at the geometric center of it , same applies for a hollow sphere like a soccer ball ,the center is indeed in the middle where there is no mass.
They need not be. Many electromagnets are circular disks or toroidal (donut shaped). Bar magnets, not surprisingly, are bar shaped - often with a rectangular cross section.
the Donut Camp Church mostly the Donut Camp
Donut Connection and Dunkin Donuts are not the same company, but Donut Connection and Mr. Donut are the same.
It depends what donut you have.
Donut is the "abbreviation" of doughnut.
Sonho or donut.
A donut is not chemically homogeneous.