SOLUTION: Find the number of revolutions made by a circular wheel of area 1.54 m2 in rolling a distance of 176 m.

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Question 240234: Find the number of revolutions made by a circular wheel of area 1.54 m2 in
rolling a distance of 176 m.
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Use the area to rid the radius of the wheel
AreaOfCircle+=+pi%2A+r%5E2
1.54+=+pi+%2A+r%5E2
0.49+=+r%5E2
0.7+=+r
So the radius is 0.7m
Now use the equation for circumference
CircumferenceOfCircle+=+2%2Api%2Ar
CircumferenceOfCircle+=+2%2Api%2A0.7
Circumference+=+4.396 meters
How many circumferecnes are in 176m?
176%2F4.396+=+40.04
Allowing for rounding, I would say 40 revolutions.