Math, asked by deeptighanathe, 1 year ago

A cylindrical roller 2.5m in length 1.5 in radius rolled on a road was found to covet the area of 16500m^2. How many revolutions does it make?

Answers

Answered by subhraghosh
1
the length l =2.5m, radius r=1.5m
curved surface area=2pi rl=23.5m2
the area of road=16500m2
the revolution taken by the roller=16500/23.5=702
Answered by RishabhRDX
2
In my answer, I've taken surface area (curved) of roller in decimal. That's, why the answer is coming 700.01.

If you don't take decimal and find the number of Revolutions by dividing 16500 by (165/7), then the answer is perfect.

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