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31 May, 03:41

28. In triangle GHI: g = 13cm, h = 8cm, i = 15cm (Law of Cosines)

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  1. 31 May, 06:54
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    Cos (x) = g/I

    Cos (x) = 13/15

    x = aCos (13/15)

    x = 29.926 Degrees
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