An annulus is a two-dimensional shape which can be thought of as a disc with a smaller disc removed from its center. An annulus looks like:
Note that both the inner and outer radii may take on any values, so long as the outer radius is larger than the inner.
|Date of creation||2013-03-22 12:26:23|
|Last modified on||2013-03-22 12:26:23|
|Last modified by||akrowne (2)|