.如右图所示,在AABC中,已知AB= AC,AM= AN,角BAN= A 30

Loveyou2019-12-17  16

问题 .如右图所示,在AABC中,已知AB= AC,AM= AN,角BAN= A 30°,角MNC的度数是多少?( )A. 15° B. 20° C. 25° D. 30°

选项

答案A

解析AB=AC,[img]/upload/tiku/143/9539599_1.gif[/img][img]/upload/tiku/143/9539599_1_1.gif[/img]
转载请注明原文地址:https://ti.zuoweng.com/ti/hmw9KKKQ