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Measuring the length and saying it is 10 means nothing useful; 10 what? You might mean 10 yards, you might mean 10 metres, you might mean 10 lightyears. Likewise, measuring any dimension or property of something means nothing if you don't include the units it was measured in.

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βˆ™ 14y ago
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βˆ™ 13y ago

As measures all around the world can differ widely, it is important to standardise them. Hence the invention of SI units.

If I were asked to measure a vital piece of wood in a new house design in the UK and gave the answer 1 1/2, someone in the US might well assume that that measurement was 1 1/2 feet when in fact I was talking about 1 1/2 metres. Wood too small and not strong enough for the job. House falls down and builder ends up in court and looses business. His family end up homeless etc, etc.!!!

So it is important to give units in all measurements not just lengths then all walks of life can speak a common language no matter where they live.

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Anonymous

Lvl 1
βˆ™ 4y ago

what

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Q: Why must a unit be included with a measurement?
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