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How many millimeters are there in a square inch?

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Answer:

Answer

1 inch = 25.4 mm; 1 sq inch = 645.16 sq mm.

First answer by Hiramito. Last edit by Hiramito. Contributor trust: 756 [recommend contributor ]. Question popularity: 157 [recommend question].

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How many square millimeteres are in one inch?
A square millimetre is a unit of area. An inch is a unit of length. The two units are therefore incompatible.
How many inches in a square inch?
1 square inch is measured by length times width (LxW). So the answer would still be 1 inch.
How many square inches are in an inch?
There are no square inches in an inch. Square inches are units of area and inches are units of length.
4 inch square is equal to how many square inches?
4 x 4 = 16 square inches.
How many square inches is a 10 inch diameter square?
It is easy to show this graphically but, given the limitations of this browser, an algebraic explanation is the best that I can do.Suppose the sides of the square are x inches.Then, by Pythagoras,...