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# Circumference

## Pi times the diameter or the distance around the 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.

## Circumference

by CK-12 //basic
Calculate a circle's circumference.
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• Video

## Circumference Principles - Basic

by CK-12 //basic
This video provides the student with a walkthrough on finding circumference.
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• Video

## Circumference Examples - Basic

by CK-12 //basic
This video provides the student with a walkthrough of one or more examples from the concept "Circumference".
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• Flashcards

## Perimeter and Area of Circles and Circle Parts Flashcards

by CK-12 //basic
These flashcards help you study important terms and vocabulary from Circumference, Arc Length, Area of a Circle, and Area of Sectors and Segments.
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