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Math Help - further triangle

  1. #1
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    Post further triangle

    want to check my answers to see if i have finally grasped sine and cosine.
    triangle BCF..<f=60.6 side BC=4500 and BF=4778.7
    thanks
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  2. #2
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    Quote Originally Posted by jim49990 View Post
    want to check my answers to see if i have finally grasped sine and cosine.
    triangle BCF..<f=60.6 side BC=4500 and BF=4778.7
    thanks
    is it a right triangle?
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  3. #3
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    no its not

    it sits side on to the previous triangle in the problem i posted cosine rule
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