The following table gives some of the units and their conversions related to the length measurement. The formal ways include measurement units like meters, inches, etc., which give meaning and structure to our findings. Informal ways include measuring length using hand span, thread, etc., where there is no definite relation between the quantities in numbers. There are two ways to measure length which are informal ways and formal ways. We have already discussed units and conversion for the measurement of length. To measure length, we use measurement tapes and a ruler.
In addition to the conversion within the same system of measurement, we can also convert a unit from the metric system to the standard system, and vice-versa as shown in the above example. For example, if 1 inch = 2.54 centimeters, then 5 inches can be calculated by multiplying 5 by 2.54 which will give us 12.7 centimeters. Given below is a measurement chart that can be used for such conversion.īy using these values, we can apply the unitary method to convert a unit to another unit of measurement. Whether it is length, mass, temperature, or time, we have some formulas that can be used to get the values in a common unit. In those cases, we need to know and use 'measurement conversion' to convert the given units into a common unit. For example, we can add 12 meters to 10 meters to get 22 meters of length, but we cannot add 12 meters to 10 inches. Whenever we need to compare the values of the given quantities or perform arithmetic operations on them, we need to have a common unit of measurement. You can go ahead and explore all important topics in measurement by selecting the topics from the list given below: Now, before learning about measurement units, let us learn the abbreviations that are generally used to represent units of measurement. Measurement can also be done using unknown quantities or variables to establish a general relationship ( algebra). Measuring heights and distances using trigonometric ratios is also a type of measurement ( trigonometry). We use the concept of measurement with the shapes (area, volume, etc). It is associated with other branches as well like geometry, trigonometry, algebra, etc. In mathematics, measurement is often considered as a separate branch as it includes a wide range of knowledge including conversion, units, measuring length, mass, time, etc. This statement is making more sense mathematically and offers us a reason for our deduction. However, if we say that the length of the first rod is 20 inches, and the length of the second rod is 15 inches, we understand that the 1st rod is bigger than the second one by 5 inches. This statement is serving a very limited purpose of comparison where we do not know anything about the individual attributes of the given rods. For example, 'this rod is bigger than that rod'. It can be understood as a process of defining physical items using numbers. Measurement is defined as the system or act of measuring.
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