# CIRCLES - PowerPoint PPT Presentation

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## CIRCLES

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### CIRCLES Chapter 8, Section 3 Definitions Circle: The set of all points that are the same distance from the center Radius: a segment whose endpoints are the center and ... – PowerPoint PPT presentation

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Title: CIRCLES

1
CIRCLES
• Chapter 8, Section 3

2
Definitions
• Circle The set of all points that are the same
distance from the center
• Radius a segment whose endpoints are the center
and a point on the circle

3
Equation of a Circle
4
Writing the Equation of a Circle
• Group x terms together, y-terms together, and
move constants to the other side
• Complete the square for the x-terms
• Remember that whatever you do to one side, you
must also do to the other
• Complete the square for the y-terms
• Remember that whatever you do to one side, you
must also do to the other

5
Example Write the equation and find the center
Group terms
Complete the square
6
You try!! Write the equation and find the center