a road roller takes 750 complete revolutions to move once over to level a road find the area of the road if the diameter of a roller is 84cm and length is 1 metre...plzzz...answer
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Answered by
3
diameter = 84cm => radius = 42cm
length = 1m =100cm
curved surface area =2*22/7*42*100
=> 26400cm2
therefore area of the road = 26400*750=
19800000cm2 => 1980m2
length = 1m =100cm
curved surface area =2*22/7*42*100
=> 26400cm2
therefore area of the road = 26400*750=
19800000cm2 => 1980m2
Answered by
1
area of road = 750 * csa of roller
area of road = 750* 2Πrh
area of road= 750* 2*22/7*42*100
area of road = 750* 26400
area of road = 19800000 cm²
area of road = 750* 2Πrh
area of road= 750* 2*22/7*42*100
area of road = 750* 26400
area of road = 19800000 cm²
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