in a triangle where there told to solve <T ≅ <S they make the following chart Statements: 1.line RU Bisects <SRT 2. Line RS ≅ line RT 3. <SRU ≅ <TRU 4. line RU ≅ line RU 5. triangleRSU ≅ triangleRTU 6. <T ≅ <A and for their reasons: 1. Given 2. Given 3. Definition of angle bisector 4. Reflexive property of congruence 5. a. 6. b. my question is state the reasons they out a and b so what does a. and b. mean

In the given statements, a. and b. are likely referring to the missing reasons for statements 5 and 6. They could have been overlooked or not provided in the original information. Without the specific reasons, it is not possible to determine their meaning in this context.