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The diameter of a roller is 84 cm and it...

The diameter of a roller is 84 cm and its length is 120 cm. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in `m^2`.

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MBD-Surface Areas and Volumes-Exercise
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  2. A metal pipe is 77 cm long. The inner diameter of a cross section is 4...

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  15. The radius of the base of a closed right circular cylinder is 21 cm an...

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  16. The diameter of a roller 1.5 m long is 84 cm. If it takes 100 revoluti...

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  17. The outer diameter of a drainage pipe is 1 m and it is 21 m long. Find...

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