A.15°
B.20°
C.25°
D.30°
[单选题]如下图所示,在△ABC中,已知AB=AC,AM=AN,∠BAN=30°。问∠MNC的度数是多少?( )A.15°B.20°C.25°D.30°
[单选题]如下图所示,在△ABC中,已知AB=AC,AM=AN,∠BAN=30°。问∠MNC的度数是多少?( )A.15°B.20°C.25°D.30°
[单选题]如下图所示,在△ABC中,已知AB=AC,AM=AN,∠BAN=30°。问∠MNC的度数是多少?( )A.15°B.20°C.25°D.30°
[单选题]如下图所示,在△ABC中,已知AB=AC,AM=AN,∠BAN=30°。问∠MNC的度数是多少?( )A.15°B.20°C.25°D.30°
[单选题]如下图所示,在△ABC中,已知AB=AC,AM=AN,∠BAN=30°。问∠MNC的度数是多少?( )A.15°B.20°C.25°D.30°
[单选题]如下图所示,在△ABC中,已知AB=AC,AM=AN,∠BAN=30°。问∠MNC的度数是多少?( )A.15°B.20°C.25°D.30°
[单选题]如下图所示,在△ABC中,已知AB=AC,AM=AN,∠BAN=30°。问∠MNC的度数是多少?( )A.15°B.20°C.25°D.30°
[单选题]如下图所示,在△ABC中,已知AB=AC,AM=AN,∠BAN=30°。问∠MNC的度数是多少?( )A.15°B.20°C.25°D.30°
[单选题]如下图所示,在△ABC中,已知AB=AC,AM=AN,∠BAN=30°。问∠MNC的度数是多少?( )A.15°B.20°C.25°D.30°
[单选题]如下图所示,在△ABC中,已知AB=AC,AM=AN,∠BAN=30°。问∠MNC的度数是多少?( )A.15°B.20°C.25°D.30°