Question 1088573
I'll take a slightly different approach
[ net vol ] = [ net area ] x [ height ]
{{{ r[1] = 77/2 }}} in
{{{ r[1] = 38.5 }}} in
{{{ pi*r[1]^2 = 3.1416*38.5^2 }}}
{{{ A[1] = 3.1416*1482.25 }}}
{{{ A[1] = 4656.637 }}}
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{{{ A[2] = 3.1416*4^2 = 50.2656 }}}
{{{ 5*50.2656 = 251.328 }}}
{{{ A[1] - 5*A[2] = 4656.637 - 251.328 }}}
{{{ A[1] - 5*A[2] = 4405.309 }}}
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{{{ 4405.309*4 = 17621.236 }}} net volume
and
{{{ .3*17621.236 = 5286.271 }}} lbs weight
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check my math & formulas