As a general rule a chair would have 4 legs, a stool would have 3.
It just does.
On a four legged chair, if any of the legs are not as long (or longer) as the others, the chair will wobble. On a three legged stoll, if one of the legs are different, the chair will only be uneven or fall over (depending on how drastic the difference is).
A Drum Throne is a round chair with three legs
a stool is a seat with three or four legs but with nothing to support your back or arms while a chair is a piece of furniture to sit on with a back, a seat and four legs
a turtle
A chair can have four legs (typically a dinning room or kitchen chair). Some chairs have a single column and splayed out feet (typically an office/typist chair that spins). There are three legged stools (traditional milking stools). Armchairs will have four legs.
because if it had one, two or three it would topple over.
this monument is intended as a protest against the use of mines and cluster bombs. it is a handicapped chair that symbolises all poeple handicapped by mines.
a chair
You will have five chairs if there are four legs on each chair.
They have 4 legs so they can balance evenly
Person bringing a chair in.