You generally cannot read 0.126 mm on a ruler. You would be lucky to be able to resolve 0.2 or possibly 0.1, but not 0.126. Even if you could, and its true that 0.126 is about 1/8, the standard for accuracy in a measuring device is ± one half of a minor division - that is ± 0.5 mm, so a reading of 0.126 mm is meaningless, unless you had a much finer lined ruler and a microscope.
by using a ruler and a compass
Clock is to time as ruler is to distance.
In the world of Drafting and Architecture, it is called a Scale.
A ruler
One third of 8.5 inches is 2.83... inches. Whether on a ruler or anything else.
you read a ruler by conting the little lines first
Put a ruler next to it and read the little numbers on the ruler...
by the numbers that are marked there
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.
Read about Cnut in full on http://www.englandandenglishhistory.com
You have to give the choices. I am not a wizard, so I can't read your mind.
3. ab.c centimetres or abc millimetres
read this article http://en.wikipedia.org/wiki/World_War_I If you can't be bothered to read that then basically an Austrian ruler was assassinated
Cache line is a measure of its length is divided into equal parts. With a ruler to draw lines to direct and accurate. ruler are made with different line lengths. ruler is an important tool in technical drawing.