Math Problem Statement

Solve for x in the diagram with two intersecting lines where angle KOP is labeled (4x + 38)° and angle NPJ is 118°.

Solution

In the image, we are given two intersecting lines forming angles, and we need to solve for xx.

Here’s the step-by-step process:

  1. The angle KOP\angle KOP is labeled as (4x+38)(4x + 38)^\circ, and NPJ\angle NPJ is labeled as 118118^\circ.
  2. KOP\angle KOP and NPJ\angle NPJ form a pair of vertically opposite angles, which means they are equal. This gives us the equation: 4x+38=1184x + 38 = 118
  3. Now, solve for xx: 4x=118384x = 118 - 38 4x=804x = 80 x=804=20x = \frac{80}{4} = 20

Thus, x=20x = 20.

Would you like further details or explanations on this?

Here are 5 follow-up questions you might find useful:

  1. What are vertically opposite angles and why are they equal?
  2. How can you identify corresponding or alternate angles in parallel line diagrams?
  3. What are other properties of intersecting lines regarding angle measures?
  4. How can you use algebra to solve for variables in angle equations?
  5. What other types of angle relationships can be used to solve similar problems?

Tip: Always check the geometry of diagrams for special relationships like vertical angles, alternate interior angles, or corresponding angles—they often simplify problems!

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Math Problem Analysis

Mathematical Concepts

Algebra
Angles
Geometry

Formulas

Vertically Opposite Angles are Equal

Theorems

Vertically Opposite Angles Theorem

Suitable Grade Level

Grades 7-9