SOLUTION: A rope is wrapped tightly around a wheel with a radius of 2 feet. If the radius of the wheel is increased by 2 feet to a radius of 4 feet, by how much must the rope be lengthened t
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Question 1015499: A rope is wrapped tightly around a wheel with a radius of 2 feet. If the radius of the wheel is increased by 2 feet to a radius of 4 feet, by how much must the rope be lengthened to fit around the whee? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! C=2*pi*r
If radius is doubled, the circumference is doubled. Here, one starts with 4 pi feet, so if the radius is doubled to 4, the result is 8 pi feet. The rope must be lengthened by 4 pi feet.
