Answer:
They are Congruent but not similar.
Explanation:
We speak about congruence when we talk about state of coinciding or agreeing among two figures.
Congruent segments have the same length, the congruent angles have the same measure; two figures can be congruent if they have the same shape and size; but when some figures have the same shape but different size, they are similar.
Having saying this, the relationship between both shapes is that: They are Congruent but not similar.