SOLUTION: This is a possible question on a contractor test. A silo has a outside dimension of 12ft in diameter and is 30ft high. What is the square foot area of outside wall. Thank you,

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Question 883622: This is a possible question on a contractor test. A silo has a outside
dimension of 12ft in diameter and is 30ft high. What is the square foot
area of outside wall.
Thank you,
Rodger

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A silo has a outside
dimension of 12ft in diameter and is 30ft high. What is the square foot
area of outside wall.
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Lateral area = 2pi%2Ar%2Ah+=+2%2Api%2A6%2A30+=+360pi sq ft
=~ 1131 sq ft
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The top is pi*r^2 = 36pi sq ft
=~ 113 sq ft