To find the square footage, you multiply the length by the width. In this case, if you consider 48 feet as the length and 12 feet as the width, the area would be 48 ft x 12 ft = 576 sq ft. The third dimension (12 ft) is not needed for calculating square footage, as it pertains to volume instead. Thus, the area is 576 sq ft.
48
144 of them.
144
221 of them. Get extra for breakage.
204 tiles.
Assuming that the 12x12 is inches.12 in. x 12 in. = 1 ft x 1 ft = 1 square (sq) footGiven that you have 200 square feet to cover:(200 sq ft) / (1 sq ft) = 200 unitsThat means it takes 200 12x12 in. squares to cover a 200 sq ft. space.If you meant 12x12 to be in feet:12 ft x 12 ft = 144 sq ft.200 / 144 ~= 1.39 units (It would take 1.39 squares to cover it)
Assuming you mean the shed is 12 feet by 12 feet - that's a total of 144 sq. ft.
256 tiles
240 Get extra for breakage.
1 sheet of 12 ft x 12 ft will cover 144 sq ft. More than enough.
One tile that is 12 ft by 12 ft will be more than enough.
Area = 48 ft * 10 ft = 48*10 sq ft = 480 sq ft.