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complete the proof that \\(\\overline{ps} \\cong \\overline{rs}\\). | |…

Question

complete the proof that \\(\overline{ps} \cong \overline{rs}\\).

statementreason
2\\(\overline{qs} \perp \overline{pr}\\)given
3\\(\angle qpr \cong \angle prq\\)isosceles triangle theorem
4\\(\angle ptq \cong \angle qtr\\)all right angles are congruent
5\\(\triangle pqt \cong \triangle rqt\\)aas
6\\(\angle pqs \cong \angle rqs\\)cpctc
7\\(\overline{qs} \cong \overline{qs}\\)reflexive property of congruence
8\\(\triangle pqs \cong \triangle rqs\\)sas
9\\(\overline{ps} \cong \overline{rs}\\)

Explanation:

Step1: Recall CPCTC

CPCTC (Corresponding Parts of Congruent Triangles are Congruent) states that if two triangles are congruent, their corresponding parts (sides and angles) are congruent.

Step2: Apply CPCTC to $\triangle PQS$ and $\triangle RQS$

We know from step 8 that $\triangle PQS \cong \triangle RQS$ (by SAS). So, the corresponding sides $\overline{PS}$ and $\overline{RS}$ must be congruent by CPCTC.

Answer:

CPCTC (Corresponding Parts of Congruent Triangles are Congruent)