Each chamber formed sharp at both ends with parallel side.

It is elongated and relatively flat, with nearly parallel sides.

The lengths of the parallel sides and the distance between them being the given numbers.

The most basic is a U-shaped wooden box with slots cut in the two parallel sides.

The shells of species in this genus are long and narrow with parallel sides.

The most basic is a U-shaped wood or plastic box with slots in the two parallel sides for a saw.

The arms have parallel sides and taper only near the tip.

The early boiler fireboxes had flat parallel sides (see figure 1).

The parallel sides differ in length by 2x units where:

Its parallel sides are of indefinite lengths and can be infinitely long.