Math Problem Statement

Angle in regular polygon

Solution

To find the interior angle of a regular polygon, where all sides and angles are equal, you can use the following formula:

Interior Angle=(n2)×180n\text{Interior Angle} = \frac{(n - 2) \times 180^\circ}{n}

Where:

  • nn is the number of sides of the polygon.

Explanation:

  • The sum of the interior angles of any polygon is (n2)×180(n - 2) \times 180^\circ.
  • Since all angles in a regular polygon are equal, dividing this sum by the number of sides nn gives the measure of each interior angle.

Example:

For a regular hexagon (6-sided polygon): Interior Angle=(62)×1806=7206=120\text{Interior Angle} = \frac{(6 - 2) \times 180^\circ}{6} = \frac{720^\circ}{6} = 120^\circ

Would you like to try an example with a specific polygon or need more details on this?

5 Related Questions:

  1. How do you calculate the exterior angle of a regular polygon?
  2. What is the sum of all interior angles of a 12-sided regular polygon?
  3. How do the number of sides in a polygon affect the size of its interior angles?
  4. What are some real-life applications of regular polygons?
  5. How does the formula change for irregular polygons?

Tip: The exterior angle of a regular polygon is complementary to the interior angle and can be calculated as 360n\frac{360^\circ}{n}.

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Math Problem Analysis

Mathematical Concepts

Geometry
Polygons

Formulas

Interior angle of a regular polygon

Theorems

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Suitable Grade Level

Grades 9-12