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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
There are 4840 square yards in an acre and 9 square feet in a square yard (4840 x 9 = 43,560).
An acre is an old timers measurement used in agriculture...
it was 4 poles wide and 40 poles long. A pole is equivalent to sixteen and a half feet. So back then, an acre was a piece of farming land 660 feet long (220 yards or one eighth of a mile) and 66 feet wide (22 yards or one eightieth of a mile).
Acre is a measure of area, which would be square feet.
Feet are a measure of distance.
The best you could do is something like this:
An acre is 43, 560 square feet.
Draw/imagine a square or a rectangle that would cover that much area.
If it is a square, it would be (approximately) 208.7 feet on each side.
Its perimeter (the distance around it if you walk an imaginary fence around you acre-sized plot) would be 834.8 feet.
Trying to to figure out an acre of 'Circle' - hmmmmm???
Radius = 1/2 of Diameter
sorry, just can't wrap my head around this to come up with the correct equation.
maybe we can get lucky with some other brainiac taking what I did provide and come up with a solution for you?
Square - It would be 208.7 feet across if you walk across it, and the same if you walk the other way across it.
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