question_answer

Which of the following is an example of A.S.A. criterion of congruency for two triangles \[\Delta ABC\]  and \[\Delta DEF\]?

A)  \[AB=EF,\text{ }\angle B=\angle E\] and \[\angle C=\angle F\]  

B)  \[BC=EF,\text{ }\angle B=\angle E\] and \[\angle C=\angle F\]

C)  \[AC=EF,\text{ }\angle B=\angle D\] and \[\angle C=\angle F\]

D)  \[AC=DE,\text{ }\angle B=\angle D\] and \[\angle C=\angle F\]

Correct Answer: B

Solution :

(b): Figuratively, we can show it as