Question

A roller 5m in length and 7m in diameter when rolled on a road was found to cover an area of 5500m^2. How many revolutions did it makes?​

Answer 1

(2×π×r)×h

2×π×3.5×5

=109.90

=110(rounded form)

110×y=5500

so,y=5500÷110

=50

So no:of rotations=50

Is it correct?

Answer 2

Answer:

Hope it is Right ☺️

Step-by-step explanation:

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