document.write( "Question 953033: A water tank 3.5m high with 10cm thick concrete and an external diameter of 3m has to have a banner 1 meter high placed aroun the tank. what area of material is required.
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Algebra.Com's Answer #582484 by macston(5194)\"\" \"About 
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area of the banner will be height of the banner times circumference of the tank.
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\n" ); document.write( "\"Area=3%28pi%29m%5E2\"
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