If triangle ABC is similar to triangle def, angle a is equal to angle e is equal to 30 degrees, and angle B is equal to 70 degrees, what is angle f equal to?

If triangle ABC is similar to triangle def, angle a is equal to angle e is equal to 30 degrees, and angle B is equal to 70 degrees, what is angle f equal to?

Is it similar or congruent? If it is congruent, that's it
∠C=180°-∠A-∠B=180°-30°-70°=80°
∵△ABC≌△DEF
∴∠F=∠C=80°