We read in Britannica online, referenced below, that the Cello is a brass instrument in the strings section of the orchestra and can be called a violoncello.
It is the bass instrument in the violin group.
The length of the Cello is about 27.5 inches but with the neck included it will be about 47 inches.
It has a shorter neck than the violin and differs also in that it has deeper ribs.
The earlier cellos developed in the 16th Century often only had 5 strings.
In the 17th and 18th Century it became popular as a solo instrument.
Joseph Haydn and Mozart more and more popularized the cello in their instrumental ensembles.
J.S. Bach’s six suites were written for solo cello.
Beethoven’s 5 sonatas were written for piano and cello.
The cello is a prized instrument to play in the orchestra and for solo performances by young and old, accomplished performers and those who play the cello merely for their own enjoyment.