a$)$ Figure P$6$a shows the cross$-$sectional dimensions of a $\text{'}$T$\text{'}$ shaped beam. It is given that:

$D=254mm$;$B=40mm$

Determine the values of the neutral axis location $($measured from the base of the section$),y_c($in $mm),$ and second

moment of area about the $x-$x axis, $I_{}($in $mm4)$ for the section. $[1+2$ marks$]$

Figure P$6$a