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Given that Diameter of a roller = 84cm.
Then radius r = d/2
= 42cm.
Given length of a roller = 1m.
= 100cm.
We know that Curved surface area of roller = 2pirh
= 2 * 22/7 * 42 * 100
= 2 * 22 * 6 * 100
= 26400cm^2.
= 2.64m^2
Therefore area of the road levelled in 1 revolutions = 2.64m^2.
Now, Area rolled in 750 revolutions = 2.64 * 750
= 1980m^2.
Hope this helps!
Then radius r = d/2
= 42cm.
Given length of a roller = 1m.
= 100cm.
We know that Curved surface area of roller = 2pirh
= 2 * 22/7 * 42 * 100
= 2 * 22 * 6 * 100
= 26400cm^2.
= 2.64m^2
Therefore area of the road levelled in 1 revolutions = 2.64m^2.
Now, Area rolled in 750 revolutions = 2.64 * 750
= 1980m^2.
Hope this helps!
Answered by
8
Hi,
Please see the attached file!
Thanks
Please see the attached file!
Thanks
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