11-3 Sector Area and Arc Length

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11-3 Sector Area and Arc Length
A sector area of a circle is the area of a shaded
portion of the circle.
Sector area
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Example

• Find the area of the shaded sector JGH.

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Definition
An arc length of a circle is the distance around
a circle between two points.
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Example

• Find the arc length of FHG.

H