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The diameter of a garden roller is 1.4m and it is 2m long. How much area will it cover in 5 revolutions? `(U s e\ pi=(22)/7)`

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RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A RIGHT CIRCULAR CYLINDER-All Questions
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  3. The diameter of a garden roller is 1.4m and it is 2m long. How much...

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  11. A solid cylinder has total surface area of 462\ c m^2dot Its curved...

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  12. The total surface area of a hollow cylinder which is open from both...

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  13. A cylindrical vessel, without lid, has to be tin-coated on its both...

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