来自任敬喜的问题
如图,在△ABC中,AD是角平分线,AE是高,已知∠BAC=2∠B,∠B=2∠DAE,那么∠ACB为()A.80°B.72°C.48°D.36°
如图,在△ABC中,AD是角平分线,AE是高,已知∠BAC=2∠B,∠B=2∠DAE,那么∠ACB为()
A.80°
B.72°
C.48°
D.36°
1回答
2020-12-0304:21
如图,在△ABC中,AD是角平分线,AE是高,已知∠BAC=2∠B,∠B=2∠DAE,那么∠ACB为()A.80°B.72°C.48°D.36°
如图,在△ABC中,AD是角平分线,AE是高,已知∠BAC=2∠B,∠B=2∠DAE,那么∠ACB为()
A.80°
B.72°
C.48°
D.36°
由题意可得∠DAE=12