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    trach171's Avatar
    trach171 Posts: 2, Reputation: 1
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    #1

    Nov 14, 2009, 06:01 PM
    Largest angle in triangle?
    A triangle has sides of length 5,6 and 7 units. Find the largest angle to the nearest minute


    Thanks in advance
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Nov 14, 2009, 08:39 PM

    Draw a diagram of the triangle, a sketch will do, with each side larger than the previous.

    Look for the largest angle. You'll see that it lies between the sides of 5 and 6 units.

    Then, use the cosine rule to fond the size of the angle.



    Post what you did.
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #3

    Nov 15, 2009, 03:37 AM

    You'll also have to convert the digits after the decimal point into minutes (60 minutes in a degree)
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