Math Problem Statement
use auxiliary line
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Angles
Vertically Opposite Angles
Linear Pairs
Formulas
Vertically opposite angles: Opposite angles formed by intersecting lines are equal.
Linear pair: The sum of angles on a straight line equals 180°.
Theorems
Vertical Angles Theorem
Angle Sum of a Straight Line
Suitable Grade Level
Grades 7-9
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