How to Use a Ruler
this instructable will show you idiots out there how to use a ruler who don't know how
Measuring...
in the picture above you will see numbers from 1 to 12.these represent inches, and 12 inches add up to a foot. use these number to measure the length of an object by placing the left end of the ruler in line with the left end of the object.
Measuring Cont...
from there you cont the numbers until there is no more object to measure. this is the length of your object.