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Circle Geometry Essentials: Definitions, Center, Radius, Intercepts

Explore the fundamentals of circles - definitions, center coordinates (h, k), radius (r), and intercepts - and learn to find these values through examples. Master circle equations and intercept calculations.

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Circle Geometry Essentials: Definitions, Center, Radius, Intercepts

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  1. Section 2.4 – Circles Circle – a set of points in a plane that are equidistant from a fixed point.

  2. Section 2.4 – Circles Definitions Radius (r) – is the distance that the set of points in a circle are from the fixed. Center (h, k) – the coordinates of the fixed point. r (h, k)

  3. Section 2.4 – Circles (x, y) r (0, 0)

  4. Section 2.4 – Circles

  5. Section 2.4 – Circles

  6. Section 2.4 – Circles Intercepts x-intercepts: set the y variable equal to zero and solve for x. y-intercepts: set the x variable equal to zero and solve for y.    

  7. Section 2.4 – Circles Examples Find the coordinates of the center, the radius and the intercepts.

  8. Section 2.4 – Circles Examples Find the coordinates of the center, the radius and the intercepts.

  9. Section 2.4 – Circles Examples Find the coordinates of the center, the radius, the equation of the circle and the intercepts. 

  10. Section 2.4 – Circles Examples Find the coordinates of the center, the radius, the equation of the circle and the intercepts. 

  11. Section 2.4 – Circles Examples Find the coordinates of the center, the radius, and the intercepts.

  12. Section 2.4 – Circles Examples Find the coordinates of the center, the radius, and the intercepts.

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