Question

triangles DEF and
DEF and LMN are both isosceles with DE = DF and LM = LN, respectively If DE =LM and EF=MN
then, are the two triangles congruent? Which condition do you use
Which condition do you use? If ∆E 40°, what
and EF = MN, then, are the
is the measure of < N?​

Answer 1

Answer:

Yes the two triangles are congruent. I used SSS criterion here. If <E is 40° then <N is also 40° because the two triangles are congruent.