SOLUTION: Hi, I'm having trouble figuring out this problem: How many feet does a wheel with a diameter of 16 inches travel after four revolutions? Thank you.

Question 1041315: Hi, I'm having trouble figuring out this problem:
How many feet does a wheel with a diameter of 16 inches travel after four revolutions?
Thank you.
Found 2 solutions by ikleyn, robertb:
Answer by ikleyn(52797) (Show Source): You can put this solution on YOUR website!
.
Hi, I'm having trouble figuring out this problem:
How many feet does a wheel with a diameter of 16 inches travel after four revolutions?
Thank you.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

= inches.

4 is the number of revolutions,
d is the diameter, = 3.14.

By the way, is the length of the circle with the diameter d.

What is difficult in it?

Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
The formula in finding the arc length is
,
where s = arc length, r = radius, and = angular measure in radians.
Now , and radius = diameter/2 = 8 inches.
==> inches.
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