Chaim tried to prove that \triangle JKL\cong \triangle LMN△JKL≅△LMNtriangle, J, K, L, \cong, triangle, L, M, N. StatementReason

1JK=LM=3JK=LM=3J, K, equals, L, M, equals, 3Given

2JL=LN=5JL=LN=5J, L, equals, L, N, equals, 5Given

3m\angle KLJ=m\angle MNL=27\degreem∠KLJ=m∠MNL=27°m, angle, K, L, J, equals, m, angle, M, N, L, equals, 27, degreeGiven

4\triangle JKL\cong \triangle LMN△JKL≅△LMNtriangle, J, K, L, \cong, triangle, L, M, NSide-side-angle congruence

What is the first error Chaim made in his proof?