Math Problem Statement

In the figure below, points N, K, and P are collinear. Given that ∠QNP = 2x and ∠ANP = 3x + 14, find the number of degrees in ∠ANQ.

Solution

From the image, the problem seems to involve geometry with points AA, QQ, NN, and PP on a diagram, where lines and angles are involved. The task is to find the number of degrees in ANQ\angle ANQ, given some other angle values.

Based on what is visible from the image, here is the summarized problem:

  • The figure shows points AA, NN, and QQ lying on the diagram.
  • It is given that: QNP=2x,ANP=3x+14\angle QNP = 2x, \quad \angle ANP = 3x + 14
  • The goal is to find the value of ANQ\angle ANQ.

Solving the problem:

  1. Since ANQ\angle ANQ is part of the straight line, and the sum of angles around a point is 180180^\circ, we use: QNP+ANP=180\angle QNP + \angle ANP = 180^\circ Substituting the given values for the angles: 2x+(3x+14)=1802x + (3x + 14) = 180

  2. Simplifying the equation: 5x+14=1805x + 14 = 180 5x=1665x = 166 x=33.2x = 33.2

  3. Now that we know x=33.2x = 33.2, we can substitute it back to find the value of ANP\angle ANP and QNP\angle QNP:

    • QNP=2x=2(33.2)=66.4\angle QNP = 2x = 2(33.2) = 66.4^\circ
    • ANP=3x+14=3(33.2)+14=99.6+14=113.6\angle ANP = 3x + 14 = 3(33.2) + 14 = 99.6 + 14 = 113.6^\circ
  4. Finally, to find ANQ\angle ANQ, we subtract QNP\angle QNP from 180180^\circ: ANQ=18066.4=113.6\angle ANQ = 180^\circ - 66.4^\circ = 113.6^\circ

Thus, the measure of ANQ\angle ANQ is 113.6°.

Would you like further details or clarifications on any part of the solution?

Here are some related questions you might want to explore:

  1. How are angles around a point used in geometry?
  2. What are supplementary angles, and how do they relate to this problem?
  3. How do you solve linear equations involving angles?
  4. What are different types of angles found in geometry (e.g., acute, obtuse)?
  5. How does the concept of collinear points influence geometry problems?

Tip: In geometry, it's useful to remember that the sum of angles on a straight line is always 180°, which is a key tool for solving many angle-based problems.

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Math Problem Analysis

Mathematical Concepts

Algebra
Geometry
Linear Equations
Angle Properties

Formulas

Sum of angles on a straight line = 180°
Linear equation for angles: 2x + (3x + 14) = 180°

Theorems

Sum of angles around a point
Supplementary angles theorem

Suitable Grade Level

Grades 8-10