Find the value of x, y and z in the figure.
?
?
where a = 3
?
A. ?x = 60°, y = 60°, z = 57°
B. ?x = 60°, y = 63°, z = 57°
C. ?x = 63°, y = 63°, z = 57°
D. ?x = 57°, y = 63°, z = 60°
E. ?x = 60°, y = 60°, z = 60°
Answer: B
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