I was working through problem 10.10A with my students and there appears to be a missing dimension... The cylindrical features have their positions located, as well as their height above the top of the part, however there is no dimension or information for their depth below the part.  we know that the total height is somewhere between 34mm and 34.1mm  but without an exact value we cant get the correct volume of 244027 mm^3 If anyone has a solution that we missed I would greatly appreciate the feedback!