document.write( "Question 385357: What is the formula for calculating the surface area of a barrel shape: 48\" tall, 20\" small Ø and 24\" large Ø? \n" ); document.write( "
Algebra.Com's Answer #272664 by mananth(16946)\"\" \"About 
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Total surface area of frustum of a cone =(pi*(R+r))*sqrt((R-r)^2+(+h^2))
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\n" ); document.write( "(pi*(12+10))*sqrt((12-10)^2+(48^2))
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\n" ); document.write( "=3320.4 in^2
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