Can you help with B and D$,$ please?

CHAPTER EXERCISES

$545$

$($a$)$

$($e$)$

$($b$)$

$($f$)$

$($h$)$

larr$6$

Exercise $11\mathrm{.}2$ To obtain sizes, use the views on this page and transfer them to the scale at the side to obtain values. Dimension drawings completely in one$-$place millimeters or two$-$place inches as assigned, full size. See the inside back cover for decimal$-$inch and millimeter equivalents.