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# Area of a Circle

## Pi times the radius squared.

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.

## Area of a Circle

by CK-12 //basic
Calculate the area of a circle.
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## Determine the Area of a Circle

by CK-12 //basic
Provides an example of how to determine the area of a circle when given the diameter.
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## Area of a Circle Principles - Basic

by CK-12 //basic
This video provides the student with a walkthrough on finding the area of a circle.
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## Area of a Circle Examples - Basic

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

by CK-12 //basic
Learn to calculate the area of a circle.
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## Area of a Circle - Overview

by CK-12 //basic
Overview
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## Area of a Circle: Candy Example

by CK-12 //basic
Learn how to find the area of a circle using an example with candy.
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## Area of a Circle - Example 1

by CK-12 //basic
Find area given radius or diameter
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## Area of a Circle - Example 2

by CK-12 //basic
Area of Semi- and Quarter circle
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## Area of a Circle - Example 3

by CK-12 //basic
Find radius or diameter given area
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