Chapter Review
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Consider the Base Angles Theorem.
If RQ≅ RS then ∠RQS ≅ ∠RSQ.
The statement RQ≅ RS tells us that these sides are congruent. Let's mark that in our diagram.
According to the Base Angles Theorem, if two sides of a triangle are congruent, then the angles opposite them are congruent.
Now we can copy and complete the statement. If RQ≅ RS then ∠RQS ≅ ∠RSQ.