Question

If the triangles in the diagram are congruent, which equation must be true?

m ∠A

  = m ∠E  
AC  = DF BC  = DE m ∠C   = m ∠F  

Answer 1

m∠A = m∠E

Explanation:

Answer 2

I don't know kind of equations your looking for but one could be that ABC=DEF.