Math Problem Statement
Solution
In the provided image, we have two parallel lines cut by a transversal, creating two marked angles: and . Since the lines are parallel, the marked angles are alternate interior angles, which means they are congruent (equal).
Thus, we can set up the following equation:
Solving for :
- Subtract from both sides:
- Add 23 to both sides:
Finding the measure of each angle:
- Substitute into :
- Substitute into :
Thus, both angles are .
Would you like any additional details or further explanation?
Here are 5 related questions:
- What are alternate interior angles?
- How do you determine if two angles are congruent when parallel lines are involved?
- Can alternate interior angles be supplementary? Why or why not?
- How would the solution change if the lines were not parallel?
- What other angle relationships are formed when two parallel lines are cut by a transversal?
Tip: Always check for congruent angle relationships like alternate interior, corresponding, or vertically opposite angles when working with parallel lines.
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Math Problem Analysis
Mathematical Concepts
Algebra
Parallel Lines
Angles
Alternate Interior Angles
Formulas
Equating alternate interior angles: 2x - 23 = x + 2
Theorems
Alternate Interior Angles Theorem
Suitable Grade Level
Grades 7-10
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