College Algebra: Circles

A series of college algebra lectures: Finding the Center-Radius Form of the Equation of a Circle, Finding the Center and Radius of a Circle.

Finding the Center-Radius Form of a Circle by Completing the Square - Example 1

Finding the Center-Radius Form of a Circle by Completing the Square - Example 2

Finding the Center-Radius Form of a Circle by Completing the Square - Example 3

Finding the Center and Radius of a Circle

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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