Need some help. I have a wedge-shaped area that I need to find volume. Length is 19', width is 13. Deep end is 20" and shallow end is 3". I was thinking trapezoid, so used an online calculator. The units weren't specified. I assumed feet and entered that. I divided the result by 27 and came out with about 8.5 yards. That sound right? I'd also like to find the volume of the dirt pile I have to see if I need more.
Finding Volume
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Break it up to solve the area
Break it up into regular geometric shapes is the best way. It sounds like you have a rectangle and a Triangle to work with. Are there two 90 degree corners in the figure?
If so, then you can use the height and length of the Rectangular portion, then calculate the Triangle and add them together.
For the volume, once you've calculated the area of the irregular shape, just multiply by the other dimension of the object and you've got it.Stop thinking why you can't and Start thinking how you CAN!
Remember, SUCCESS comes in CANS!
George -
What you have there (if I'm envisioning it correctly) is a cube and a triangular wedge. (when in doubt break down into simple primitives)
The cube would have a volume of 3"x19"x13" = 1140 cubic inches
plus the triangular wedge, which is the area of a triangle times the depth in inches. if the ends are square, then the triangular area is 1/2 of a cube of the max height/width/depth of the triangle.
So... (20-3=17") x 19" x 13" = 4199 / 2 = 2099.5 cubic inches.
So the volume should be 3239.5 cubic inches.Keith Z. Leonard
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you mixed up some feet dimensions and inch dimensions.Originally posted by drumpriestWhat you have there (if I'm envisioning it correctly) is a cube and a triangular wedge. (when in doubt break down into simple primitives)
The cube would have a volume of 3"x19"x13" = 1140 cubic inches
plus the triangular wedge, which is the area of a triangle times the depth in inches. if the ends are square, then the triangular area is 1/2 of a cube of the max height/width/depth of the triangle.
So... (20-3=17") x 19" x 13" = 4199 / 2 = 2099.5 cubic inches.
So the volume should be 3239.5 cubic inches.
The cube is 13' x 19' x 3" deep (61.75 cu feet)
The wedge is 13' x 19' x (20-3 ")/2 (175 cu ft)
total 236.75 cu ft
and he wants the volume in cu yards. so divide by 27 cuft/cu yard
=8.76 cu yds.
Loring in Katy, TX USA
If your only tool is a hammer, you tend to treat all problems as if they were nails.
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Thanks Loring - that is about what the online volume calculator for the trapezoid told me. Guess I need more dirt.Originally posted by LCHIEN
=8.76 cu yds.
David
The chief cause of failure in this life is giving up what you want most for what you want at the moment.Comment
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