Standard Units of Measuring Length: Such units are pre-defined and do not change person to person or object to object. Look at the chart below showing units of length. The units of measuring length can be classified into two types: Standard units of measuring length and non-standard units of measuring length. Length can be measured in different units like centimeters, inches, meters, or by using a handspan, foot span, etc. Here, the length of the pencil is 8 centimeters which is one of the units of measuring length. Look at the image given below showing the act of measurement of the length of a pencil using a ruler. Many times, we do not use a particular scale or tool to measure length but only guess it based on our understanding of units of length and observation. Thus, measuring length is an important skill to be used in our everyday life. But if you want to tell the length of that vase to somebody who is not there, how will you do it? We can do that if we know its value in a certain unit, say 4 feet. Imagine going to a store with your friend and observing a beautiful vase to place in your drawing room. The skill of measuring the lengths of objects and understanding the units of length is very crucial as it helps us to interact with our environment in a more organized manner. Measurement of length is defined as the act of measuring the length of objects in some specified units which can be standard or non-standard.
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