Math Problem Statement

Given m || n, find the value of x. (The image shows two parallel lines m and n cut by a transversal with angles x° and 118°.)

Solution

The image shows two parallel lines, mnm \parallel n, cut by a transversal. The angles labeled are xx^\circ and 118118^\circ. To find the value of xx, we can use the fact that corresponding angles are equal when two parallel lines are cut by a transversal.

Since mnm \parallel n, the angle xx^\circ and the angle labeled 118118^\circ are supplementary angles (they form a straight line at the intersection of the transversal). Therefore, their sum must be 180°.

Using the equation: x+118=180x + 118 = 180 x=180118=62x = 180 - 118 = 62^\circ

Thus, the value of xx is 6262^\circ.

Would you like further details or have any questions?

Here are some related questions to consider:

  1. What are corresponding angles in parallel lines?
  2. How can you identify alternate interior angles with parallel lines?
  3. What is the difference between supplementary and complementary angles?
  4. How do you prove that two lines are parallel using angles formed by a transversal?
  5. What are the properties of vertically opposite angles?

Tip: When dealing with parallel lines and a transversal, always check if the angles are corresponding, alternate interior, or supplementary to simplify calculations.

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Math Problem Analysis

Mathematical Concepts

Geometry
Parallel Lines
Transversals
Angle Relationships

Formulas

x + 118 = 180

Theorems

Supplementary Angles
Parallel Lines and Transversals Theorem

Suitable Grade Level

Grades 7-9