Vectors and Scolars
Vectors: have an magnitude and a direction
Scolars: have an magnitude but have no direction
Feet and inches
g, kg and pounds
The length of the boat.
Eight inches is a measurement of length whereas a cup is a measurement of volume. They are two completely different types of measurement.
you will use cm because it is useful then the other types of measurement
The answer to your question depends on what system of measurement your on.
mass, volume and weight.
measurement of the different types of risk,and how they are classified
Teaspoon, tablespoon, cup
there are two types linears measurements 1)direct 2) indirect
"http://wiki.answers.com/Q/What_types_of_measurement_your_ancestors_used"
No.