31.50 inches
1 millimeters = 0.03937 inches 1.6 x 0.03937 = 0.06293 inches
Multiply inches by 25.4 to get millimeters. 1.4 x 25.4 = 35.56 mm.
1/2 in
A square inch is a unit of area. A millimetre is a unit of distance. The two units are therefore incompatible.
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