Complete the pairs of corresponding parts if ABD congruent to EFC.

angle B =

∠FCE

∠FEC

∠EFC

Remember the notation ...

When you have a triangle called ABD, the angles may be called in theses equivalent ways>

angle A is equivalent to ∠ DAB

angle B is equivalent to ∠ ABD

angle D is equivalen to ∠ BDA

Then given that the two triangles are congruent, you can say an

angle B = angle F = ∠ EFC

So the answer is the last option of the list.