如图所示支导线，AB边的坐标方位角为<img src="https://nimg.ppkao.com/2019-05/tangling/2019051513332598913.jpg?sign=b0e2746ebe0292ca0423014ba3d2e895&t=62d6fa81" />，转折角如图，则CD边的坐标方位角<img src="https://nimg.ppkao.com/2019-05/tangling/2019051513334015657.jpg?sign=50765d9adc9b6f24912c4e96382adda8&t=62d6fa81" />为（）。<br /> <img src="https://nimg.ppkao.com/2019-05/tangling/2019051513340134285.jpg?sign=65d934ae53a6234a5eec35a0ce8d9e6f&t=62d6fa81" /><br /> <img src="https://nimg.ppkao.com/2019-05/tangling/2019051513341260963.jpg?sign=bcbd1fdb37b06e464ca61e63221c8260&t=62d6fa81" />