Definition:Imperial/Area/Square Inch
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Definition
The square inch is an imperial unit of area.
One square inch is equal to a square of side $1$ inch in length.
| \(\ds \) | \(\) | \(\ds 1\) | square inch | |||||||||||
| \(\ds \) | \(=\) | \(\ds 6 \cdotp 4516 = 2 \cdotp 54^2\) | square centimetres |
The definition is exact.
Sources
- 1944: Alfred E. Holbrow: Geometrical Drawing (12th ed.) ... (previous) ... (next): Section $\text I$. Introduction