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When Total Area is Known
Please enter Total Sq.Ft & Soil Depth Modifier
Circle Area = ¹x radius²
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Total Area (Sq. Ft.)14000<- Enter Total Sq. Ft.
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Soil Depth Modifier (See Chart)
0.0123
<- Enter Soil Depth Modifier from Chart
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Cubic Yard of Black Dirt Required
172.2<- Result will populate here
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 = 3.14
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Soil Modifier Chartradius = distance from the middle of the circle to the edge of the circle
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radius² = radius X radius
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Desired Soil DepthSoil Depth ModifierCircle Area = 3.14 X radius X radius
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1"0.0031
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2"0.0062Triangle Area = 1/2 X (Base X Height)
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3"0.0093
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4"0.0123
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5"0.0154
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6"0.0185
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7"0.0216
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8"0.0247 Base |---------------------| Base |------------------|
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9"0.0278
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10"0.0309
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11"0.034
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12"0.0371base = length of the bottom of the triangle
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height = distance from the base of the triangle to the tip of the third point
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When measuring the height of the triangle, the measurament should be perpendicular to the base line
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Triangle Area = 1/2 X (Base X Height)
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Trapezoid Area = 1/2 X (B1 +B2) X Height
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 Base 2 (B2) |----------------------------------|
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 Base 1 (B1) |--------------------------------------------------------|
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B1 (Base 1) = Length of one of the bases (bases are the parallel sides)
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B2 ( Base 2) = Length of the other base (bases are the parallel sides)
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height = distance between bases (the measurement should be perpendicular to the base lines
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Trapezoid Area = 1/2 X (Base 1 + Base 2) X Height
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