Question

problem 11: (first taught in lesson 18) from this given statement, select the definition, property, postulate, or theorem that justifies the prove statement. given: intersecting line segments tv and su prove: ∠txs ≅ ∠uxv a b c d e vertical angles are congruent.

Explanation:

Step1: Identify angle relationship

$\angle TXS$ and $\angle UXV$ are vertical - angles formed by intersecting line - segments $TV$ and $SU$.

Step2: Apply vertical - angles property

By the property that vertical angles are congruent, we can justify that $\angle TXS\cong\angle UXV$.

Answer:

A. Vertical angles are congruent.