Confused: Do you mean the white part of the eyes? Are they red and irritated? The sclera is generically referred to as the white of the eye, made of a very tough type of protein. When it becomes red,  the causes can vary; from infection, to eye pressure, to injury, dryness of the cornea, allergy, etc. While some causes may be self-limited, others could blind you.
Given that triangle CDE is translated down and to the right, forming triangle C'D'E'. Therefore, the congruency statement that is correct is Î´DCE â Î´D'C'E'.
We have learned that triangles are congruent if their corresponding sides and angles are congruent. However, there are excessive requirements that need to be met in order for this claim to hold. In this section, we will learn two postulates that prove triangles congruent with less information required. These postulates are useful because they only require three corresponding parts of triangles to be congruent (rather than six corresponding parts like with CPCTC). Let's take a look at the first postulate.