Answer
a. 55.60 mm
b. 2.189 in
Work Step by Step
a.
The first mark to the left of the 0 is: 55 mm
The mark that most nearly lines up is: 0.60 mm
Thus, the total measurement is: 55+0.6=55.60 mm
b.
The first mark to the left of the 0 is: 2.1 in
The number of 0.025 marks is 3×0.025: 0.075 in
The mark that most nearly lines up is: 0.014 in
Thus, the total measurement is: 2.1+0.075+0.014=2.189 in
