Answer: yes they are.
Step-by-step explanation:
From H to G, the difference in value of x is 4 and the difference in value of y is 1. The difference in values is 1 for x and 4 for y from to D to A.
From G to F, the difference in value of x is 1 and the difference in value of y is 2. The difference in values is 2 for x and 1 for y from to A to B.
From F to E, the difference in value of x is 2 and the difference in value of y is 1. The difference in values is 1 for x and 2 for y from to B to C.
From E to H, the difference in value of x is 1 and the difference in value of y is 4. The difference in values is 4 for x and 1 for y from to C to D.
This means they both are congruent.