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    Angles ABC

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    A=4.0ft, b=5.0ft, c=8.0ft

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    using the cosine rule

    c^2 = a^2 + b^2 - 2 ab Cos C

    a=4.0ft, b=5.0ft, c=8.0ft C =?

    you get C = 125.0966 degrees.

    Similarly you can ...

    Solution Summary

    Angles ABC
    Find all the angles ABC
    a=4.0ft, b=5.0ft, c=8.0ft