问题:
如图已知∠BAC=100°,AB=AC,AB、AC的垂直平分线分别交BC于D、E,则∠DAE=( )
A.40°
B.30°
C.20°
D.10°
如图已知∠BAC=100°,AB=AC,AB、AC的垂直平分线分别交BC于D、E,则∠DAE=( )
A.40° | B.30° | C.20° | D.10° |
参考答案: