问题:
若⊿ABC∽⊿ ,∠A="40°," ∠B=110°,则∠ =( )
A. 40° B110° C70° D30°
若⊿ABC∽⊿ ,∠A="40°," ∠B=110°,则∠ =( )
A. 40° B110° C70° D30°
A. 40° B110° C70° D30°
参考答案: