Center Circle
Presentation
•
Mathematics
•
10th Grade
•
Hard
Joseph Anderson
FREE Resource
10 Slides • 6 Questions
1
Finding the Center of a Circle
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5
Multiple Choice
What is CD?
6
The Perpendicular Bisector
Draw a chord on the circle.
Cut this in half!
It needs to be PERPENDICULAR
The perpendicular bisector runs through the center
GeoGebra has a tool to do this for you.
7
Click on first point and then second point
8
Center?
Somewhere on the perpendicular bisector is the center.
9
Multiple Choice
10
11
Make 2 Perpendicular Bisectors
If each chord's perpendicular bisector goes through the center...then any 2 will meet at the center.
12
Use the intersect tool in GeoGebra
13
Fill in the Blanks
Type answer...
14
Multiple Choice
What is the length of chord CD?
15
Multiple Choice
Line segment CD is 18 units. What is the length of ED?
16
Multiple Choice
What point is the center of the circle?
Finding the Center of a Circle
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