-AB is the hypotenuse is opposite angle C instead of c-length. -AC is the cathetus is opposite to angle B rather than b length. -BC is the cathetus is located opposite A corner instead of a length.
- AB is the hypotenuse. Opposite corner C represent the length C - AC is perpendicular. Opposite angle B represent the length B - BC is perpendicular. Opposite angle A is represented by the length a.