Question 755121
a paint roller has a lateral area of 5 pi. what is the area covered if the roller makes 16 revolutions? 
i know that a paint roller is a cylinder.
lateral area = 2 pi r h (r= radius) (h=height) leave answer in terms of pi
total area = lateral area + 2 pi r^2 
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What you say is true.
Area covered = 16*lateral area
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Cheers,
Stan H.
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