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Thought-Process to Discover Knowledge

Welcome to nubtrek.

Books and other education websites provide "matter-of-fact" knowledge. Instead, nubtrek provides a thought-process to discover knowledge.

In each of the topic, the outline of the thought-process, for that topic, is provided for learners and educators.

Read in the blogs more about the unique learning experience at nubtrek.
mathsMensuration : Length, Area, and VolumeIntroduction to Measurements

### Conversion of Units of Measure

This topic provides a very brief overview of conversion of Units of Measure.

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Length of an object is the distance-span of the object from one end to the other end. To specify the distance-span the standard-unit meter is defined.

What is the standard unit of measure for length?

• meter
• meter
• height

The distance between two cities is 200000 meter. It is noted that the number is very large in some applications.

Which of the following help in simplifying such large values?

• it cannot be simplified
• a larger measure of length is defined such as 1 kilometer = 1000 meter.
• a larger measure of length is defined such as 1 kilometer = 1000 meter.

The answer is "a larger measure of length is defined". Using the larger measure, the distance between two cities is given as 200 kilometer.

The length of a pen is very small to measure in 1 meter. It is noted that the number is very small in some applications.

Which of the following help in simplifying such small values?

• it cannot be simplified
• a smaller measure of length is defined such as 1 meter = 100 centimeter.
• a smaller measure of length is defined such as 1 meter = 100 centimeter.

The answer is "a smaller measure of length is defined". Using the smaller measure, the length of a pen is given as 7 centimeter.

The basic unit "meter" is converted into smaller or larger units of lengths.

1000 millimeter = 1 meter

100 centimeter = 1 meter

10 decimeter = 1 meter

1 decameter = 10 meter

1 hectometer = 100 meter

1 kilometer = 1000 meter Remember the following:
"milli" is from a Latin root word meaning thousand
"centi" is from a Latin root word meaning hundred
"deci" is from a Latin root word meaning tenth
"deca" is from a Greek root word meaning ten
"hecto" is from a Greek root word meaning hundred
"kilo" is from a Greek root word meaning thousand

Among these, millimeter, centimeter, meter, and kilometer are widely used depending on the scale of the length measurement.

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