Answer:
 We conclude that:
∠A = ∠ FEC
Step-by-step explanation:
Given
△ABD ≅ △EFC
To determine:
∠A =
As
△ABD ≅ △EFC
So the triangles △ABD and △EFC are congruent to each other.
- We know that congruent triangles have equal corresponding parts.
Please check the attached graph.
From the graph, it is clear that ∠A is correspondent to ∠E.
 ∠A = ∠E
From the attached figure, it is clear that:
∠F can also be denoted by ∠ FEC
as
 ∠A = ∠E
so
∠A = ∠ FEC
Therefore, we conclude that:
∠A = ∠ FEC
 
        
             
        
        
        
Answer:
a. Alternate exterior angles.
b. <A and <B are congruent. This diagram involves a line intersecting two parallel lines, forming the congruent angles <A and <B on opposite sides of the transversal. 
c. They are alternate exterior angles like <A and <B, but because it is not guaranteed that the transversal is intersecting parallel lines in this case, we cannot prove that <C and <D are congruent alternate exterior angles.
 
        
             
        
        
        
Answer:
You can not simplify that, sorry, hope that helped
Step-by-step explanation:
 
        
             
        
        
        
Answer:
3rd answer
Step-by-step explanation:
it would be the third answer
 
        
             
        
        
        
Answc
Step-by-step explanation:
answer= C. 11m