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This Interior Angles in Convex Polygons: Lesson instructional video also includes:
How are angles and sides related? Given several regular convex polygons, the video shows how to calculate the sum of their interior angles. The segment in a playlist on geometry shows how to find the measure of one angle if the polygon is regular.
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Concepts
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Instructional Ideas
- Demonstrate how the formula holds by showing the number of triangles formed in a polygon
- Lead a discussion on whether the formulas in the video will work for any polygon
Classroom Considerations
- Individuals should be comfortable solving linear equations
- This video is hosted on YouTube
Pros
- Contains a link to other interior angle resources
- Works a few examples using sums of interior angles
Cons
- None