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An inch is a measure of length or distance while a measure such as 48 cm x 40 cm is a measure of area. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid.
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48 cm is equal too 18.9 inches.
48 centimeters is 18.9 inches.
48 inches = 121.92 centimeters. Algebraic Steps / Dimensional Analysis Formula 48 in* 2.54 cm 1 in = 121.92 cm
55 cm x 35 cm 25 cm = 48 125 cm3 = 2 936,768 cubic inches
One square inch is equal to 2.542 = 6.4516 cetimetres. Therefore, 48 square inches is equal to 48 x 6.4516 = 309.6768 square centimetres.