If in triangles ABC and DEF, AB/DE=BC/FD, then they will be similar, when
(a) ∠B = ∠E
(b) ∠A = ∠D
(c) ∠B = ∠D
(d) ∠A = ∠F
This question is exactly same as Question 12 – MCQ from NCERT Exemplar – Chapter 6 Class 10 Triangles.
Please check https://www.teachoo.com/13397/3602/Question-12/category/NCERT-Exemplar---MCQ/