SOLUTION: I wish to have 5 cubic yards of dry sand delivered to my yard. How big (diameter and height of cone) will the pile of sand be?

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Question 507779: I wish to have 5 cubic yards of dry sand delivered to my yard. How big (diameter and height of cone) will the pile of sand be?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
I wish to have 5 cubic yards of dry sand delivered to my yard.
How big (diameter and height of cone) will the pile of sand be?
:
Assuming the height of the pile is half the diameter (equal to the radius)
convert 5 cubic yds to cu/ft: 5*27 = 135 cu/ft
:
1%2F3pi%2Ar%5E3 = 135
multiply both sides by 3
pi%2Ar%5E3 = 405
r%5E3 = 405%2Fpi
r%5E3 = 129
Find the cube root of both sides
r ~ 5 ft
:
A pile with a 10 ft diameter and a height of 5 ft, for 5 cu/yds