Question 883621
The inside floor area of a silo is 20sf and 35ft high. What is the inside
wall area.
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Assuming it's round (a cylinder with a flat top):
Find the radius.
{{{Area = pi*r^2 = 20}}}
{{{r = sqrt(20/pi)}}}
r =~ 2.523 ft
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For the vertical wall:
{{{Area = 2pi*r*h = 2*pi*2.523*35}}}
Area = 554.87 sq ft
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If the top is flat, that's another 20 sq ft
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If the top is a hemisphere:
{{{Area = 2pi*r^2}}}
= another 40 sq ft