Question

if ΔDEF≅ΔMNO, then angle O is equal to ​

Answer 1

Answer:

to angle F

is the correct answer

Answer 2

Answer:

For triangle to be congruent  SAS(Side angle Side) axiom we need to have two equal sides and the included angle same.

In ΔABC and ΔDFE

We have AB=DF  

and ∠A=∠D

But ∠A is formed by the two sides AB and AC of ΔABC

But ∠D is formed by the two sides DE and DF of ΔDFE

So we need AC=DE for the two triangles to be congruent.