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[" curved surface area and total surface area."],[" A rectangular strip "25cm times7cm" is rotated about the longer side.Find the the trad "5cm" is "s" s "],[" surface area of the solid thus generated."],[" A rectangular sheet of paper,"44cm times20cm," is rolled along its length to form a "quad " Total surface "],[" vinder.Find the total surface area of the cylinder thus generated."]

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