Q$.8($a$)$ Provide the minimum required dimensions needed to

fuHy define the following sketch $($Fig$\mathrm{.}1).$ Is your answer

the only option to fully define this sketch? Support your

answer by providing at least three different options of

fully defining this sketch.

$($b$)$ The raw material dimensions of the

cylindrical rod to be machined on the

CNC lathe are $122$ mm length and the

diameter $51$ mm $($Fig$\mathrm{.}2).$ Write the CNC

part programming. Assume required

cutting parameters value.