I assume you mean units of length. The official (worldwide) unit for that is the meter. Multiples and submultiples are often used, such as kilometer, millimeter, or micrometer.
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The question does not make sense since an acre is an area (two dimensional) measured in square feet or square meters. "Long" refers to a length (one dimensional) which is measured in feet, meters, etc.
Height and weight are two measurements that are used to assess physical size and shape. Height is measured in feet and inches and is typically recorded in a persons medical records. Weight is measured in pounds and is used to calculate a persons Body Mass Index (BMI).Height is typically measured in feet and inches.Weight is typically measured in pounds.Body Mass Index (BMI) is used to measure a person's weight in relation to their height.It is important to note that every person is different and there is no one size fits all when it comes to height and weight.
One dimension means you only need to measure once. A line is a good example. It has only one measure - length. ■
Nothing. A square metre is a measure of area in 2-dimensional space whereas volume is a 3-dimensional concept and is measured in cubic units of length. The two measure different things and, according to the basic rules of dimensional analysis, conversion from one to the other is not valid.
To find the two-dimensional area of a square, you must multiply two one-dimensional measurements together (say "length" times "width").So, for instance, if you have a square that is one foot (length) by one foot (width), multiply those two measurements together: 1 foot * 1 foot = 1 square foot, because one times one is one.If you want to measure that same area in inches, you need to convert the one-dimensional measurements from feet to inches before you multiply them. Since 1 foot = 12 inches, the square I mentioned above is 12 inches * 12 inches = 144 square inches, because twelve times twelve is one hundred forty four.