turkey-yks 2014 Q34

turkey-yks · Other · ygs Trig Proofs Triangle Trigonometric Relation
In the regular pentagon ABCDE shown, K and L are the midpoints of line segments AB and DA, respectively.
Given this, what is the measure of angle LKB in degrees?
A) 105
B) 108
C) $\mathbf { 1 2 0 }$
D) 126
E) 135
In the regular pentagon ABCDE shown, K and L are the midpoints of line segments AB and DA, respectively.

Given this, what is the measure of angle LKB in degrees?\\
A) 105\\
B) 108\\
C) $\mathbf { 1 2 0 }$\\
D) 126\\
E) 135