In the figure above KL NM LN bisects lt KNM If ... - JAMB Mathematics 2014 Question

A
91o
B
89o
C
37o
D
19o
correct option: c
In the diagram above, (\alpha) = 54o(alternate angles; KL||MN) < KNM = 2(\alpha) (LN is bisector of < KNM) = 108o
35o + < KMN + 108o = 180o(sum of angles of (\bigtriangleup))
< KMN + 143o = 180o
< KMN = 180o - 143o
= 37o
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