The triangles are similar. Find the missing length x and the missing angles A, B, C.  

A. x = 9 units; A = 91°; B = 35°; C = 54°
B. x = 9 units; A = 54°; B = 35°; C = 91°
C. x = 18 units; A = 91°; B = 35°; C = 54°
D. x = 18 units; A = 35°; B = 91°; C = 54°


Answer: A

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