256 centimetres (not cemtmeters!) = 100.8 inches, approx.
It is not possible to answer the question because there is no information about the units used for the integer value: 256. It should be obvious to anybody that the fraction for 256 millimetres + 2 inches will be quite different to 256 cm + 2 inches.
There are 25.4 millimetres in one inch. Therefore, rounded to two decimal places, 256 millimetres is equal to 256/25.4 = 10.08 inches.
pi * 2 * square root(256 / pi) = 56.7185232 inches
21 feet and 4 inches
(16" x 16") = 256 square inches(256 square inches) / (144 square inches per square foot) = 1 and 7/9 square feet
256 cubic inches
256 ft2
16" x 16" = 256 square inches.
256 inches
21.3 repeating.
10.07874015748 Direct Conversion Formula 256 mm* 1 in 25.4 mm = 10.07874016 in
If they 16 is in inches, this would be 256 square inches per tile. That would cover 10,496 square inches. Divide by 144 and you get 72.89 square feet.