Chapter Eleven:  
Circles

Geometry   Notes

Chapter  11

Section  11.1
Section  11.2
Section  11.3
Section  11.4
Section  11.5
Section  11.6



Geometry Contents

 

Take notes on the following topics.

Section 11.5  Circles in the Coordinate Plane

Vocabulary

Standard form of an equation of a circle (p. 615) The standard form of an equation of a circle is (x − h)2 + (y − k)2 = r2, where (h, k) is the center of the circle and r is the radius.

Theorem 11-13

The equation of a circle with center (h, k) and a radius of r units is
(x – h)2 + (y – k)2 = r2