cinthia94 cinthia94 12-06-2019 Mathematics contestada Abby used the law of cosines for KMN to solve for k. k2 = 312 + 532 – 2(31)(53)cos(37°) Law of cosines: a2 = b2 + c2 – 2bccos(A) What additional information did Abby know that is not shown in the diagram? mK = 37° and n = 31 mK = 37° and k = 31 mN = 37° and n = 31 mN = 37° and k = 31