Not necessarily, but can be.
legs
The legs or transverse sides.
A trapezoid is a 4 sided quadrilateral with a pair of opposite parallel lines of different lengths.
The quadrilateral you are describing is a trapezoid. A trapezoid is a four-sided polygon with at least one pair of parallel sides. In the case you mentioned, where both pairs of opposite sides are parallel but of different lengths, it is known as a trapezoid. The parallel sides are referred to as bases, and the non-parallel sides are the legs of the trapezoid.
Times tables
a structure with 4 legs that you set stuff on
Five tables,four stools or two tables,eight stools.
Periodic Tables. lol. Also, tables on old navy ships had no legs. The table was attached to strings on the ceiling so that as the ship moved and bobbed, the table would always stay upright because of gravity and the food wouldn't slide off.
Not all tables have metal legs, but metal is a strong cheap and light substance which can withstand compression well, making it ideal for table legs.
there are 3 more stools than tables, so that takes 9 legs out of the 100 total (3 stools * 3 legs=9). There are 91 legs remaining. divide 91 legs by 7 (4 legs for tables and 3 legs for stools = 7 legs). 91 legs / 7 =13. there are 13 tables and 16 stools.
It makes the table more stable and even but not all tables have 4 legs some have3 and are just as stable.
... in an unreal universe. In our universe, a typical table top will be perpendicular to the table legs, not parallel. The table legs will generally be parallel with each other.
Not necessarily, but can be.
No, they are not.
No, they are not.
What has legs but cannot