18 feet = 9 yards
12 feet = 4 yards
9 yards X 4 yards = 36 square yards
A cubic yard is 36" x 36 " x 36 "
36 " / 4" = 9 (4" sections)
Thus, 1 cubic yard has 9 square yard layers which are 4" thick
So, 1 cubic yard will cover 9 square yards 4" thick
So, 4 cubic yards will cover 36 square yards which are each 4" thick
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To find the volume in cubic yards, first convert the dimensions to yards: 12 feet = 4 yards and 4 feet = 1.33 yards. Then, multiply the three dimensions together (4 x 4 x 1.33) to get the volume in cubic yards which equals 21.28 cubic yards.
Assuming you're talking 12 inches X 12 inches X 4 inches, then it's not much of a cubic yard - a little over .012 cubic yards (or around 1/83rd).
If you're talking 12 feet X 12 feet X 4 feet = 576 cubic feet. There are 27 cubic feet in a cubic yard so 576/27 = 21 1/3 cubic yards.
I hope that helps (and that my math's correct)
Very close to 74 cubic yards.
Here's the math . . .
All dimensions have to be in the same units, so convert 4 inches to feet. 4in/12in per ft=0.333 feet.
Find the volume in cubic feet. 120' x 50' x 0.333' = 2,000 cubic feet, more or less.
There are 27 cubic feet within each cubic yard, so divide 2000CF/27CF per CY = 74.07 CY (cubic yards).
200 times 10 times 1.5 (18 inches equals 1.5 feet) divided by 27 (number of cubic feet in a cubic yard equals 111.11
27 cubic feet = 1 cubic yard
Volume = (surface area) x (depth) = (43,560) x (4) = 174,240 cubic feet = 6,453 1/3 cubic yards
1 acre = 43,560 square feet
27 cubic feet = 1 cubic yard
Volume = (12.2) x (43,560) x (40) = 21,257,280 cubic feet = 787,3062/3 cubic yards
There are approximately 1.30795 cubic yards in a cubic meter.
180 cubic feet is 6.67 cubic yards.
Divide by 27 to convert cubic feet to cubic yards= 380/27 yards
1,050 cubic feet equals 38.89 cubic yards.
There are approximately 7.65 cubic meters in 10 cubic yards.