Since JKLM is a rhombus, JM Because JKLM is also a parallelogram, MN KN because so AJNMAJNK by the. . By the Reflexive Property of Congruence, JN JN, So, by CPCTC. By the Linear Pair Theorem, ZJNM and ZJNK are supplementary. This means that m/JNM + m/JNK = Since the angles are congruent, m/JNM = m/JNK so by , m/JNK+mZJNK = 180 or MK. 2m/JNK= 180. Therefore, m/JNK = and Statement & 1 JK Reason Bank 8 2 Diagonals of a 5 parallelogram bisect each other 4JNM 4JNK 3 SSS Triangle Congruence Theorem 180 7 90 6 Substitution