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Instructional Video

Sophia: Using Triangles to Find the Sum of Interior Angles: Lesson 2

Curated by ACT

This lesson demonstrates how to use triangles to determine the sum of the interior angles of a polygon. It is 2 of 5 in the series titled "Using Triangles to Find the Sum of Interior Angles."

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Concepts
interior angles, polygons, perimeter
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Additional Tags
sophia learning, sophia, plane figures (2d shapes)
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Resource Details
Grade
9th - 10th
Subjects
Math
1 more...
Resource Type
Instructional Videos
Audiences
For Administrator Use
2 more...
Lexile Measures
0L