How to Find Interior Angles


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question 1 of 3

What is the sum of the angles in a hexagon (6-sided figure)?

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1. What are the measurements of the interior angles of an octagon (8-sided figure)?

2. Calculate the interior angles of a dodecahedron (12-sided figure) with an angle sum of 1,800o.

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About This Quiz & Worksheet

This quiz/worksheet looks at the traits and formulas of interior angles, testing your ability to identify them and navigate related geometrical problems.

Quiz & Worksheet Goals

This quiz/worksheet includes questions and problems involving:

  • The sum of the angles in a hexagon
  • Interior angles of an octagon and dodecahedron
  • The formula for the interior angles of a regular polygon
  • Nonagons

Skills Practiced

  • Problem solving - use acquired knowledge to solve practice problems involving interior angle calculations
  • Distinguishing differences - ensure that you can differentiate between the measurements of interior angles within various shapes
  • Information recall - access the knowledge you've gained regarding relevant geometric formulas

Additional Learning

To closer study this aspect of geometry, you can go over the adjoining lesson, How to Find Interior Angles. This lesson encompasses the following learning goals:

  • Define interior angles
  • Know what constitutes a regular polygon
  • Familiarize yourself with the traits of interior angles within squares, equilateral triangles, and other polygons