In our life we measure many things , from a piece of wire to the liquid inside a glass , we measure many things like this but we use the most common thing to measure them Ruler. Now lets see one of the measurements of a ruler and also to learn how to measure an object using a ruler professionally
Measurement with a ruler
As you can see here we got to measure the length of the wire , lets list down some rules :
The wire must be straight, and laid closely alongside the ruler.
Look at the ends of the wire. Are they cut neatly, or are they ragged? Is it difficult to judge where the wire begins and ends?
Look at the markings on the ruler. They are probably 1 mm apart, but they may be quite wide. Line one end of the wire up against the zero on the scale. Because of the width of the mark, this may be awkward to judge.
Look at the other end of the wire and read the scale. Again, this may be tricky to judge.
2nd measurement
As we have 500 sheet here , if we measure all the sheet togeather and divide it by 500 we can get the measurement of 1 sheet