Answer
IK = 6.9 cm
m < K = 30 degrees
NM =
Given that IJK is congruent to LMN
Therefore, IJ = ML
IK = LN
JK = MN
Where, IJ = 4cm
JK = 8cm
LN = 6.9cm
m < J = 60 degrees
m < N = 30 degrees
Since IK = LN
LN = 6.9cm
Therefore, IK = 6.9cm
m< K = m< N
m < N = 30 degrees
Therefore, m < K = 30 degrees
NM = JK
JK = 8cm
Therefore, NM = 8cm
ML = IJ
IJ = 4 cm
Therefore, ML is 4cm
m < M = m < J
m< J = 60 degrees
Therefore, m < M = 60 degrees
m < I = m < L
m < I = 90 degrees
Therefore, m < L = 90 degrees