Math Problem Statement

What's the missing angles?

Solution

The image shows a polygon with angles labeled as follows:

  1. 100100^\circ
  2. 6060^\circ
  3. 130130^\circ
  4. xx^\circ
  5. yy^\circ

The interior angles of a polygon sum to (n2)×180(n-2) \times 180^\circ, where nn is the number of sides.

This polygon has 5 sides (a pentagon), so the sum of its interior angles is:

(52)×180=3×180=540(5 - 2) \times 180^\circ = 3 \times 180^\circ = 540^\circ

Now, let's sum the known angles and solve for the missing ones xx^\circ and yy^\circ:

100+60+130+x+y=540100^\circ + 60^\circ + 130^\circ + x^\circ + y^\circ = 540^\circ

Simplifying this equation:

290+x+y=540290^\circ + x^\circ + y^\circ = 540^\circ

x+y=540290=250x^\circ + y^\circ = 540^\circ - 290^\circ = 250^\circ

Without more information (like additional given angles or relationships between xx and yy), we can only say that x+y=250x + y = 250^\circ. If there's any specific relationship between these angles given by the diagram or problem context, that would help determine the individual values of xx and yy.

Would you like more details or have any questions? Here are some related questions:

  1. How do you calculate the sum of interior angles for different polygons?
  2. What are exterior angles, and how do they relate to interior angles in polygons?
  3. How can you determine the individual angles if more information is provided?
  4. What is the general formula for the sum of exterior angles of any polygon?
  5. How does the number of sides in a polygon affect the sum of its interior angles?

Tip: When working with polygons, always start by calculating the sum of the interior angles. This foundational step helps in finding unknown angles when partial information is given.

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Math Problem Analysis

Mathematical Concepts

Geometry
Polygon Angles
Interior Angles

Formulas

Sum of interior angles of a polygon

Theorems

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Suitable Grade Level

Grades 7-9