source of the problem:
V.govrov,Pdybov,Nmiroshin,S misirnova PROBLEM IN MATHEMATICS section $2.2 $question number $124$
question
Find greatest volume $V$ of the cone with generatrix $a$
my doubt :
i don't know how $a$ is related to genratrix . ( on wiki i found- generatrix or generator is a point, curve or surface that, when moved along a given path, generates a new shape ).but i'm confused about if it is slant height of the cone or it's radius ?
any help is appreciated