Question

how can you determine that cartlige is a connective tissue

Answer 1

It has a large amount of intercellular material.

Answer 2

so simple, all the tissue in the body which has high e.c.m and low number of cells that is known as connective tissue. so the cartilage has same condition so that it is called connective tissue and further 3 types of it,

its types are due to composition of its e.c.m.

e.c.m is nothing but the Extra cellular matrix