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# Chords in Circles

## Line segments whose endpoints are on a circle.

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.

## Chords in Circles

This concept teaches students four theorems about chords and how to apply them.
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• PLIX

## Chords in Circles: Arc and Chord

Chords in Circles Interactive
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## Chords in Circles Principles

This video gives more detail about the mathematical principles presented in Chords in Circles.
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## Chords in Circles Examples

This video shows how to work step-by-step through one or more of the examples in Chords in Circles.
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• Critical Thinking

## Chords in Circles Discussion Questions

A list of student-submitted discussion questions for Chords in Circles.
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• Study Guide