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    Law of Cosines

    Equation

    c^2 = a^2 + b^2 - 2 a b cos(γ) | | 
c | third side length
a | first side length
b | second side length
γ | angle opposite third side

    Input values

    first side length | 7
second side length | 6
angle opposite third side | 75.5° (degrees)

    Results

    third side length | 7.998
angle opposite first side | 1.011 radians
= 0.001011 krad (kiloradians)
= 57.92° (degrees)
angle opposite second side | 812.9 mrad (milliradians)
= 46.58° (degrees)
= 46 degrees 34 arcminutes 35.12 arcseconds

    Diagram

    Diagram

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