centimetre
Measure what? Their mass, length, volume?
they measure the length and the width
It would be more appropriate to measure 5 math textbooks in grams or kilograms, as they are smaller and more suitable units for measuring the mass of books. Milligrams would be too small a unit for this measurement.
In math and in almost all other countries, the typical units of measure are metric units of measure
You can measure a refrigerator by using a tape measure to determine the height, width, and depth of the exterior dimensions. Make sure to measure from the widest points, including any handles or protruding parts.
I would measure it with a ruler.
The key to math is Metric!!
Its used to build a rollercoster you need math - measurment and metric and imperial systems, for example the width of it and the height of it need to be measured so that the rollorcoaster can be build in the amount of space you have.
The metric system in Math is a system of measurement that is based on the second, kilogram and meter.
Use a ruler.
During the expedition, they had to use math to measure the heights of mountains, the width and depth of rivers, also various astronomical observations, they had to measure longitude and latitude almost constantly, figure out temperature, etc. :)
All it is is the math metric system