SOLUTION: a lawn roller is a cylinder 0.96m long and 0.6m in diameter.How many revolutions of the roller are needed to roll 76m^2 of lawn? thanks for answering.

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Question 1198053: a lawn roller is a cylinder 0.96m long and 0.6m in diameter.How many revolutions of the roller are needed to roll 76m^2 of lawn?
thanks for answering.
Answer by ikleyn(52804)   (Show Source): You can put this solution on YOUR website!
.
a lawn roller is a cylinder 0.96m long and 0.6m in diameter.
How many revolutions of the roller are needed to roll 76m^2 of lawn?
thanks for answering.
~~~~~~~~~~~~~~~~~~~~~~~~~~ 

The area equation for this problem is

    76 = 0.96*(pi*0.6)*n  square meters,


where n is the number of revolutions,  = 3.14 (approximately).


From this equation

    n =  = 42.02052.


Probably, you want (or, may be, do not want) to round it to 42 revolutions.

Solved.



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