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Diameter of the roller = 1.4m Radius if the roller = 1.4/2= 0.7m Length of roller=2m Area covered in one revolution = CSA of roller = 2 pi r h = 2x22/7x0.7x2 =8.8m2 Therefore area covered = CSA x no. Of revolutions =8.8x15 =132m2
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area covered in one revolution=c.s.a of roller
so, area covered in 15 revolution=(8.8×15)m^2
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