The violin
The viola is both larger than the violin and smaller than the cello.
It is the violin.
To be amazingly talanted at playing the cello, like Yo Yo Ma, Rostropovich, Pablo Casals, etc.
A violin is a much higher pitched instrument than the Cello. Also, the violin is played while supporting it with your neck and shoulder while the Cello is played upright, similar to a bass.
The cello.
The violin
The 'cello is the larger of these instruments.
1st violin 2nd violin Viola Cello
The cello is the largest of the three instruments.
viola
The 'cello is a stringed and bowed instrument in the violin family.
The instrument cello comes from the violin, but both are different in some way. the violin is smaller, and the cello is bigger. but they both have 4 strings and each have a bow, which is used to strung about on the strings to make music.
an oboe.
Typically a string quartet is two violins, one viola, one cello.
The viola is both larger than the violin and smaller than the cello.
Cello, violin, to name only two.