## Math Problem Statement

In the diagram below, lines x and y are parallel and cut by a transversal, and m∠1 = 53°.

Which argument explains why m∠3 is also 53°?

## Solution

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## Math Problem Analysis

### Mathematical Concepts

Geometry

Parallel Lines

Transversals

Angle Relationships

### Formulas

Corresponding angles in parallel lines are congruent

### Theorems

Corresponding Angles Postulate

### Suitable Grade Level

Grades 7-9