A cylindrical roller is used to Polish a rectangular table. The length of the roller is 0.75m and the diameter is 0.21 if the roller roll-over the table 20 times completelyrics find the area of the table
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the area of table is 9.9 m square
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hii!!
here's ur answer...
given diameter is 0.21m
therefore radius is 0.21/2m
height (length) of the roller is 0.75m
CSA×20 = area of the table
CSA of the roller=2πrh
=2×22/7×0.21/2×0.75
=6.93/14m²
therefore area of table=6.93/14×20
=138.6/14
=9.9m²
hope this helps..!
here's ur answer...
given diameter is 0.21m
therefore radius is 0.21/2m
height (length) of the roller is 0.75m
CSA×20 = area of the table
CSA of the roller=2πrh
=2×22/7×0.21/2×0.75
=6.93/14m²
therefore area of table=6.93/14×20
=138.6/14
=9.9m²
hope this helps..!
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