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Math Help - knots

  1. #1
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    knots

    A sailboat leaves port on a bearing of S72W. After sailing for two hours at 12 knots, the boat turns 90 toward the south. After sailing for three hours at 9 knots on this course, what is the bearing to the ship from port? Round your answer to the nearest 0.1.

    hm...I know I am suppose to be able to find two lengths of this triangle by converting two hours at 12 knots and 3 hours at 9 knots into a distance...right? How do I go about doing this? Thanks much.
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by daydreembelievr View Post
    A sailboat leaves port on a bearing of S72W. After sailing for two hours at 12 knots, the boat turns 90 toward the south. After sailing for three hours at 9 knots on this course, what is the bearing to the ship from port? Round your answer to the nearest 0.1.

    hm...I know I am suppose to be able to find two lengths of this triangle by converting two hours at 12 knots and 3 hours at 9 knots into a distance...right? How do I go about doing this? Thanks much.
    1 knot = 1 natical mile per hour

    so 2 hours at 12 kts = 24 nm

    3 hours at 9 kts = 27 nm

    CB
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