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Length of your arm from the end of your middle finger to your elbow used as nonstandard unit of length is known as ______.
1. Fathom
2. Finger
3. Pace
4. Cubit

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Correct Answer - Option 4 : Cubit

Measurement is the comparison of an unknown quantity with a known quantity.

  • Standard Unit of Length: When a unit is accepted by the majority of people, it is called a standard unit of measurement. Example, kilogram, metre, etc.
  • Non-Standard Unit of Measurement: Those units which are not accepted by the majority of people are called a non-standard unit of measurement. For example,
    • Fathom: It is used for specification in marine depth, usually, 1 fathom (ftm) = 6 feet = 1.8288 metres
    • Handspan: When your fingers are stretched out, the length between your little finger and thumb is called a handspan.
    • Cubit: The length from your elbow to your middle finger is used for measurement
    • Finger: Smaller objects can be measured using finger

Hence, we conclude that the length of your arm from the end of your middle finger to your elbow used as a nonstandard unit of length is known as a cubit.

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