45 sqare feet
12 ft * 20 ft = 240 sq ft 5 ft * 5 ft = 25 sq ft So 12 ft * 20 ft minus 5 ft * 5 ft = 240 sq ft - 25 sq ft = 215 sq ft
It would cover 5 sq. ft. one foot deep, or 60 sq. ft. one inch deep.
8 ft * 5 ft = 8*5 sq ft = 40 sq ft
13 ft * 5 ft = 65 sq ft = 6.039 sq metres.
9 sq ft = 1 sq yd so 45 sq ft = 45/9 = 5 sq yds
volume_cuboid = length × width × height = 4 ft × 2.3 ft × 5 ft = 46 cu ft surface_area_cuboid = 2 × (length × width + width × height + height × length) = 2 × (4 ft × 2.3 ft + 2.3 ft × 5 ft + 5 ft × 4 ft) = 2 × (9.2 sq ft + 11.5 sq ft + 20 sq ft) = 2 × 40.7 sq ft = 81.4 sq ft
If 5 litres of cement is used in every sq ft. Then 5 x 1400 sq ft is 7000
5 percent of 300 is 15 so it is 15 sq ft.
3 ft X 5 Ft = 15 sq ft the 2 ft dont matter for sq ft unless you want cubic ft inwhich case you would have 30 cubic ft
on converting : 1 sq ft = 2.285 X10-5 15861 sq ft =0.364 acres
About 1500 sq ft
it takes 5 sq ft