In spatial tasks, males found it easier to visualize geometrically and rotationally while females used references to objects when guiding through a route.
To complement the architecture of this convention centre is the long span geometrically complex roof structure over the plenary hall and the column-free banquet hall.
Note that on the "affine" plane, one might push off to a parallel line, so (thinking geometrically) the number of intersection points depends on the choice of push-off.
