The diameter of a garden roller is 14m and it is 2m long. How much area will it cover in 10 revolutions?
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I think answer is 28
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lateral surface area =2πrh=2×22/7×1m(2m/2)×14m=88m^2
area cover in 10 revolution=88m^2×10=880m^2
area cover in 10 revolution=88m^2×10=880m^2
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