• #### The Circle - Problem 1

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to find the equation for a circle given the center and radius.
• #### The Circle - Problem 4

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to use two endpoints of a diameter to create the equation for a circle.
• #### The Circle - Problem 2

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to find the center and radius of a circle given an equation.
• #### The Circle - Problem 3

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to find the center and radius of a circle by completing the square.
• #### The Circle - Concept

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to use the distance formula to derive the equation for a circle.
• #### Equation of a Circle - Problem 1

##### Math›Trigonometry›Pythagorean Theorem
How to write the equation of a circle given the center and a point on the circle.
• #### The Circle - Problem 9

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to write the equation for a circle from the center and one point on the circle.
Tags:
• #### Equation of a Circle - Problem 3

##### Math›Trigonometry›Pythagorean Theorem
How to write the equation of a circle given the center and a point on the circle.
• #### Equation of a Circle - Problem 3

##### Math›Geometry›Pythagorean Theorem
How to write the equation of a circle given the center and a point on the circle.
• #### Equation of a Circle - Problem 1

##### Math›Geometry›Pythagorean Theorem
How to write the equation of a circle given the center and a point on the circle.
• #### Equation of a Circle - Concept

##### Math›Geometry›Pythagorean Theorem
How to derive the equation for a circle using the distance formula.
• #### The Circle - Problem 10

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to write the equation for a line that is tangent to a circle.
Tags:
• #### Equation of a Circle - Concept

##### Math›Trigonometry›Pythagorean Theorem
How to derive the equation for a circle using the distance formula.
• #### The Circle - Problem 6

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to write the equation of a circle from a given radius and center.
Tags:
• #### The Circle - Problem 7

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to write the equation for a circle from the endpoints of the diameter.
Tags:
• #### The Circle - Problem 8

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to write the equation for a circle from a graph.
Tags:
• #### Equation of a Circle - Problem 2

##### Math›Geometry›Pythagorean Theorem
How to identify the center and radius of a circle given an equation.
• #### Equation of a Circle - Problem 2

##### Math›Trigonometry›Pythagorean Theorem
How to identify the center and radius of a circle given an equation.
• #### Parametrizing a Circle - Problem 3

##### Math›Precalculus›Vectors and Parametric Equations
How to write the parametric equations of a circle or semicircle centered at (0,0) with radius r, oriented clockwise.
• #### The Circle - Problem 5

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to find the center and midpoint of a circle from the endpoints of the diameter.
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