begin quoting Ralph Shumaker as of Sun, Mar 18, 2007 at 08:55:05PM -0700: > Stewart Stremler wrote: > >begin quoting Ralph Shumaker as of Sat, Mar 17, 2007 at 05:14:48AM -0700: > >[snip] > > > >>That reminds me of the SAT or ACT (or somesuch) many, many moons ago, > >>where a few students challenged (and eventually won against) a couple of > >>answers on the test. One asked, ~"If you have two triangular pyramids > > > >"Triangular Pyramid" threw me a bit. They're talking about tetrahedra. > > I've seen pyramids with a square base, and others with a triangular > base. I spoke of the latter.
I've never seen a real pyramid, or depiction of same, with other than four sides. [snip] > >/me ponders > > > >It doesn't say that the tetrahedra have to be the same size. So > >if tetrahedron A is much much larger than tetrahedon B, then one > >face of B will be "fully in contact with" one face of A, but A > >will have all four faces exposed (but one slightly obscured). > > > >That gives 7. > > > >No other case comes to mind at the moment. > > Actually, I think it said that the two were identical. Hm. Then I wonder what the appeal was based on. -- Maybe they're not regular tetrahedra? Stewart Stremler -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-lpsg
