you read a ruler by conting the little lines first
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Yes!
A ruler or scale should not be read to less than the smallest graduation. In practice, in-between measurements can be estimated but they are not significant.
You look at the markings on its edge.
You could align the edge of the object with the zero on the ruler and then read off the marking on the ruler which aligned with the other end of the object.
To read .062 on a ruler in inches, you would first identify the smallest unit of measurement on the ruler. Typically, this would be 1/16 of an inch. Next, you would locate the closest mark to .062 on the ruler, which would likely be between the 1/16 and 1/32 marks. Finally, you would estimate the measurement based on the increments between the marks, taking into account the precision of the ruler.