Two of the Boy Scouts (exercise 19), Tom and Jerry, are weightlifters. They carry 50 lb. per trip. How many trips will each scou
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Since there are 
in a circle, and central 
, you can see that the part "sliced out" by the central angle is 
of the whole circle.
This means that the length of the intercepted arc
is 
of the circumference of the circle. So,
This means that the length of the intercepted arc