选择题
2014 AMC 8 Problem 15: Circle Arcs and Angles
The circumference of the circle with center O is divided into 12 equal arcs, marked the letters A through L. What is the number of degrees in the sum of the angles x and y?
2014 AMC 8 第15题 ：圆弧和角度
中心为O的圆的圆周分为12个相等的弧，标记为字母A到L。角度x和y的总和是多少度？
A.
75
B.
80
C.
90
D.
120
E.
150