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# Angle Classification

## Categories of angles based on measurements and relationships.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Angle Classifications

by CK-12 //basic
Discover how to classify angles as acute, right, obtuse, and straight angles.
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## Angle Classification

by CK-12 //basic
Learn how to classify angles.
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## Classifying an Angle Principles - Basic

by CK-12 //basic
This video provides the student with a walkthrough on classifying angles.
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## Classifying an Angle Examples - Basic

by CK-12 //basic
This video provides the student with a walkthrough of one or more examples from the concept "Classifying an Angle".
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## Angle Basics

by CK-12 //basic
Learn all the basics you'll need to know about angles. James Sousa introduces angle vocabulary and measurement.
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## Animation of Types of Angles

by CK-12 //basic
Learn about all types of angles under 2 minutes. Illustrates acute, right, obtuse, straight, reflex, and full angles.
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## Classifying an Angle as Right, Acute, Obtuse, or Straight - Overview

by CK-12 //basic
Overview
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## Classifying an Angle as Right, Acute, Obtuse, or Straight - Example 3

by CK-12 //basic
Count right angles in a turn
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