the radius of a roller is 0.7 M and it is 2m long how much area will it cover in 12 revolutions
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the radius of a roller is 0.7 M and it is 2m long how much area will it cover in 12 revolutions
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area covered in 1 revolution=2pierh
2×22/7×0.7×2=44/5=8.8m^2
now in 12 revolution area covered =8.8×12=92.4m^2
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