How many 4 inch by 8 inch bricks are needed to build a walk 6 feet wide and 2 feet long?
6ft x 2ft = 12 sq.ft. = 12*144 = 1728 sq.inches
4in x 8in = 32 sq.inches
1728 / 32 = 54 bricks
work out the square footage of your wall ----eg 4ftX8ft = 32 square feet ----- there are 32 bricks of your size to every square yard ---there are 9 square feet in one square yard --so divide the total square feet of wall by 9 ----= 32divided by 9 = 4 square yards so if 1 square yard = 32 bricks you will need 32 x 4 = 128 bricks add a few for breakages…
The way to calculate the number of bricks is to calculate the area of the walk and then divide by the area of a single brick. One very important point - the same units must be used for both areas (whether you choose inches, feet or anything else, it doesn't matter, you will get the same answer). The area of the walk is 6x24 square feet and, as there are 12 inches in a foot…
The question, as stated cannot be answered. You need to know two dimensions of the bricks to find the area of each brick, convert that area into square feet (if necessary) and then divide 256 by the area of each brick. Bricks are not usually square so it would not be appropriate for me to assume that the bricks are 16" by 16".
792 feet is a measure of length, not area. Therefore the width of the bricks is irrelevant. The question is simply about the number of 8-inch bricks that, when lined up, form a line that is 792 feet long. The answer is 792*12/8 = 1188 bricks. This assumes that 1187 thicknesses of cement between the bricks have no effect!
Assuming you lay them all the same way.... 4x8 = 32, area of a brick. 6x24 = 144, area of the walkway. Now, the walkway is in square feet, so we need to multiply by 144 to change it to square inches. 144 x 144 = 20,736. Divide this by the area of the brick. 20,736 / 32 = 648 So you need 648 bricks to cover the entire walkway.
There are 12 inches in one foot. Therefore the wall is 72 inches tall and 288 inches long. The area of that wall is 20, 736 inches squared. The area of one brick (4 inches X 8 inches) is 32 inches squared. The area of the wall divided by the area of one brick gives you the number of bricks need to make the wall (20736/36). The answer is 648. Therefore with a 4 by…
Area of wall = 8*12*8*12 = 9216 sq inches. Area of each brick = 4*8 = 32 sq inches. Therefore, number of bricks required = 9216/32 = 288. This assumes that the thickness of the wall is 1 brick and that the mortal between bricks occupies no space. For an 8 ft x 8 ft the first is probably not a good idea and the second is totally unlikely.