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- Inch - Wikipedia
A fire hydrant marked as 3-inch The inch (symbol: in or ″) is a unit of length in the British Imperial and the United States customary systems of measurement It is equal to 1 36 yard or 1 12 of a foot Derived from the Roman uncia ("twelfth"), the word inch is also sometimes used to translate similar units in other measurement systems, usually understood as deriving from
- Convert inches to cm - Unit Converter
Inch Definition: An inch (symbol: in) is a unit of length in the imperial and US customary systems of measurement An inch was defined to be equivalent to exactly 25 4 millimeters in 1959 There are 12 inches in a foot and 36 inches in a yard
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