Answer:
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ANSWER
C. 145.75 yd²
EXPLANATION
First we need to calculate the area of the four triangular faces.
The lateral surface area


The area of the base is


To find the total surface area, we add the area of the square base to the area of the 4 triangular faces.
Therefore the total surface area is

Answer:
Step-by-step explanations
Clay 1.5 0.12 30
Silty Clay 1.9 0.18 40
Clay Loam 2.4 0.25 40
Silty Clay Loam 2.4 0.25 50
Sandy Clay Loam 1.8 0.20 50
Sandy Clay 1.9 0.12 50
Silt 2.0 0.40 50
Silty Loam 2.4 0.43 50
Loam 2.0 0.54 50
Sandy Loam 1.4 0.75 50
Loamy Sand 0.8 0.88 50
Fine Sand 0.7 1.25 60