The answer depends on where the one tenth mark is. Most likely it would represent a millimetre.
One tenth of an inch after 1.5 inches. One tenth of an inch before 1.7 inches.
There are an exact number of millimetres in one centimetre - therefore, every tenth millimetre mark would line up at the same place as a centimetre mark.
It is 2/10 past the one inch mark on a ruler.
You start from the first mark from the left of the ruler which is actually 0.
On a standard ruler, 13.2 would be found just a little past the 13-inch mark, as it represents 13 inches and 2 tenths of an inch. To locate it precisely, you would count two small divisions (each representing one-tenth of an inch) after the 13-inch line. This measurement indicates a position slightly to the right of the 13-inch mark.
On a standard ruler, 1.2 cm is slightly more than one centimeter but less than one and a quarter centimeters. It can be found just past the first centimeter mark, roughly one-fifth of the way toward the second centimeter mark. If you're using a metric ruler, it will be the second small line after the 1 cm mark.
On a standard ruler, .8 inches is slightly less than one inch. It is located just a bit before the first full inch mark, specifically eight-tenths of the way between the 0 and 1-inch marks. If you look closely, you’ll see that it falls between the eighth and ninth small hash marks, as each small mark typically represents one-tenth of an inch.
If you are using a ruler, measure one digit more than the ruler reports. For instance, if you have a ruler that reports to the nearest millimeter, you will write your answer to the nearest tenth of a millimeter. (Estimate the last digit).
6.7 inches on a ruler is slightly more than 6 and 2/3 inches. It would be found just past the 6-inch mark and before the 7-inch mark. You can estimate it by counting the small increments, where each small line typically represents one-tenth of an inch. Thus, it is approximately two-thirds of the way between the 6 and 7-inch marks.
A 16-mark looks like a small vertical line that is slightly longer than the surrounding lines on a standard ruler. It typically falls between the 15-mark and the 17-mark on the ruler scale.
the 9th mark on a ruler in inches is 9/16 inches for centimeters its 9/10 cm.
If it measures a maximum of 30cm, which most rulers do it's 15cm.