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- Jul 17th 2008, 06:25 PM #1

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- Jul 17th 2008, 06:30 PM #2

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- Jul 17th 2008, 06:40 PM #3

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- Jul 17th 2008, 07:07 PM #4

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The correct answer is approximately 148.66. In general, you need to know the turning angle for these types of problems. You would be using the law of cosines: , where C is the turning angle. In this case it was simpler because the turning angle is 90 degrees.