Question

1. what is the missing reason for the proof below?

given: ( abcong de )
( angle bcongangle )
( angle acongangle d )
prove: ( angle ccongangle f )

Explanation:

The ASA (Angle - Side - Angle) congruence criterion states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent. In this case, \(AB\cong DE\) (the included side), \(\angle B\cong\angle E\), and \(\angle A\cong\angle D\).

Answer:

B. ASA