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Areas of Circle, Segments, and Sectors - Lesson 11-6
Today we started by remembering the formula for the area of a circle:
![Area of a Circle](AreaOfCircle.gif)
We practiced this by applying it to a couple of problems (these should all be pretty straight forward for you to solve):
![Circle Area Example 1](AreaExample1.gif)
![Circle Area Example 2](AreaExample2.gif)
![Circle Areas Example 3](AreaExample3.gif)
![Circle Area Example 4](AreaExample4.gif)
At this point we need to define some new areas that are associated with circles.
![Definition of Sector](Sector.gif)
![Definition of Segment](Segment.gif)
![Definition of Annulus](Annulus.gif)
For each of these, a different technique is used to find its area:
![Theorem 106 - The area of a sector](SectorArea.gif)
![Area of a Segment](SegmentArea.gif)
![Area of an Annulus](AnnulusArea.gif)
Here are some examples using the information in today's lesson:
![Sector Area Example 1](SectorAreaExample.gif)
![Sector Area Example 2](SectorAreaExample2.gif)
![Segment Area Example](SegmentAreaExample.gif)
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