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Inch and Square Inch
An inch is a unit of length commonly used in the United States and other countries following the imperial system. It is equal to 1/12 of a foot or approximately 2.54 centimeters. Inches are typically used to measure small distances or dimensions, such as the size of a screen or the height of an object.
A square inch (written as in²) is a unit of area that represents a square with sides that are one inch in length. It is used to measure surface area, such as the area of a piece of paper, a screen, or a section of flooring. One square inch equals 6.45 square centimeters.
While inches measure one-dimensional length, square inches measure two-dimensional area. Understanding the difference between the two is important in fields such as construction, design, and manufacturing where both length and area are frequently calculated.
Dekameter and Square Dekameter – A Short Note
A dekameter (symbol: dam) is a unit of length in the metric system, equal to:
1 dekameter = 10 meters
Dekameters are not commonly used in everyday life but can be helpful for measuring medium distances, such as the length of a swimming pool or a small field.
A square dekameter (symbol: dam²) is a unit of area representing a square with sides one dekameter long:
1 dam² = (10 m) × (10 m) = 100 m²
Square dekameters are used to measure areas like playgrounds, gardens, or small plots of land.
In summary:
Dekameter (dam) measures moderate lengths (tens of meters)
Square dekameter (dam²) measures moderate areas (hundreds of square meters)
Occasionally used in land measurement and construction