![The diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over a level a playground. Find the area of the The diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over a level a playground. Find the area of the](https://www.vedantu.com/question-sets/81b11666-4607-4b53-80ab-2797b97f4929254862300305599685.png)
The diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over a level a playground. Find the area of the
![A roller is made by joining together two cones at their vertices O. It is kept on two rails AB and CD which are placed asymmetrically see figure, with its axis perpendicular A roller is made by joining together two cones at their vertices O. It is kept on two rails AB and CD which are placed asymmetrically see figure, with its axis perpendicular](https://s3-us-west-2.amazonaws.com/infinitestudent-images/ckeditor_assets/pictures/540240/original_87_1.png)
A roller is made by joining together two cones at their vertices O. It is kept on two rails AB and CD which are placed asymmetrically see figure, with its axis perpendicular
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![A road roller is cylindrical in shape. Its circular end has a diameter 200 cm and its length is 1.4 m. Find the least number of revolutions that the roller must make A road roller is cylindrical in shape. Its circular end has a diameter 200 cm and its length is 1.4 m. Find the least number of revolutions that the roller must make](https://www.vedantu.com/question-sets/ab437d02-0bce-41cb-bdcd-1a93fba118095313759481425039054.png)