Inches, usually, unless it is newsprint or bulk paper.
Imperial.
What is two imperial unit of linear measurement
imperial - Elvinusa
Measure the depth and width using the same units. Divide the depth measurement by the width measurement.
The difference between a measurement and an estimation is that a measurement is an exact data while an estimation is a guess as to what something may measure. For example, you can use a ruler to get the exact measurements of a piece of paper. However, if you don't have a ruler, you can make an educated guess as to what the paper's length and width measurements may be.
Length is a measurement of how long something is. Width is a measurement of how wide it is. Width and length are the sizes of an object in 2 dimensions which are 90 degrees apart.
European measurement system
imperial
what is the width of a notebook
An inch
The measurement of length, width, and height finds the volume of a cube or rectangular prism.
Multiply the length measurement by the width measurement and this will give you the area in SQFT if your measurements of length and width were made in feet.