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the formula is length X width X depth
so 33 X 20 X 1/6 ( .166 FT)=109.99 cubic ft of sand (4.073 cubic yards )
( 2 inches is 2 parts of 12 inches which is a foot so 2/12 = 1/6 ft)
multiply the length (100 ft) by the depth (1.5 ft) by the width 2 ft and that results in a cubic ft measurement
divide that by 9 ( 9 cubic ft = 1 cubic yard ) and you have your answer
I am not going to work it out for you as it is grade 3 maths
We need to convert everything to a common unit, so let's convert the 18 inches into 1.5 feet.
Volume is length times width times height.
v= 132 x 2 x 1.5
v= 396 cubic feet
To convert to cubic yards, imagine a yard cube. It is 3 feet by 3 feet by 3 feet for a total of 27 cubic feet.
v1 = 396 cubic feet/27 cubic feet per yard
v1 = 14 2/3 cubic yards
Hi Paula:
A mathematical logic question.
You need to get all of the measurements in the same units.
- A cubic yard is 1 yard x 1 yard x 1 yard
- equals 3 ft x 3 ft x 3 ft
- equals 27 cubic feet,
so once you have the volume of the pipe in cubic feet, you divide by 27 to get the volume in cubic yards.
- Volume of a cylinder (the pipe) is the cross sectional area X length.
- Area equals Pi x r squared.
- equals 22/7 x 1 x 1
equals 3.14#####
times length (20)
equals 62.857### cubic feet volume
divide by 27 cubic feet
equals 2.328### cubic yards.
- The answer is always the easy part.
- what is important is knowing exactly what the question is, and
- determing what calculations are needed to get the answer.
Wasn't that better than if I'd just said 2 1/3 cubic yards?
Cheers
That may be ok for the US, but in Europe you would need cubic metres.
I yd = 0.914 m, 1 cubic yd = 0.914 x .914 x .1914 = 0.764
So 14.66 cu. yds is 14.66 x 0.764 = 11.2 cubic metres - with a bit of luck!
Imagine or draw a cubic yard. It has a length of 1 yard, a width of 1 yard, and a depth of 1 yard. Now each of these yards can be broken down into 3 feet, since there are 3 feet in a yard. Thus, a cubic yard has a length of 3 feet, a width of 3 feet, and a depth of 3 feet. We have 3 x 3 x 3 or 27 cubic feet in a cubic yard.
Next, take 2106 and divide by 27. The answer is 78 cubic yards.
not possible to calculate with the information provided. here is a basic formula to get you close.
length x width x average depth x height in feet x 7.5 gallons / cubic ft
Calculating the cubic feet of a space requires multiplying the area of the bottom times the average height. You get the bottom area by multiplying the length times the width. Remember, to get cubic feet, you need all your measurements in feet to start with.
Here is your formula:
VOLUME (in cubic feet) = Length (in feet) X Width (in feet) X Height (in feet)
If it's a rectangular room you're working with, it is all straightforward. If there are irregular walls, it may be necessary to divide up the room into rectangular sections and then add together their individual volumes. If the ceiling is sloped, you need to use the height that has the same ceiling area above it as below it. Good luck! Truly.
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