Math Problem Statement

Given m || n, find the value of x and y.

Solution

Given that mnm \parallel n, we can use the properties of parallel lines and angles to find the values of xx and yy.

  1. Corresponding angles: Since mnm \parallel n and the transversal crosses both lines, the angle labeled xx^\circ is corresponding to the angle labeled yy^\circ. Therefore, x=yx = y.

  2. Supplementary angles: The angle adjacent to xx^\circ is 130130^\circ, and these two angles form a straight line. Therefore, they are supplementary, meaning their sum is 180180^\circ. So, we can set up the following equation: x+130=180x + 130^\circ = 180^\circ Solving for xx: x=180130=50x = 180^\circ - 130^\circ = 50^\circ Since x=yx = y, we also have y=50y = 50^\circ.

Thus, the values of xx and yy are both 5050^\circ.

Would you like further details or have any questions? Here are 5 related questions:

  1. What are alternate interior angles in parallel lines?
  2. How do you determine angles in parallel lines cut by a transversal?
  3. What other types of angles are formed when a transversal cuts parallel lines?
  4. What is the sum of the angles on a straight line?
  5. What is the definition of corresponding angles?

Tip: When dealing with parallel lines, always look for angle relationships like corresponding, alternate, or co-interior angles to simplify your work.

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Math Problem Analysis

Mathematical Concepts

Geometry
Parallel Lines
Angles

Formulas

x + 130° = 180° (supplementary angles)
x = y (corresponding angles)

Theorems

Corresponding Angles Postulate
Supplementary Angles Theorem

Suitable Grade Level

Grades 7-9