Arclength and Area of sector.notebook
May 14, 2013
1
Arclength and Area of sector.notebook
May 14, 2013
2
Arclength and Area of sector.notebook
May 14, 2013
Section 11.3: Arclength and Area of Sector
Term
Diagram
Sector of circle
(pie shaped region
of a circle)
Segment of circle
(shaded region between arc and
its chord) Arclength distance along
an arc measured
in linear units 3
Arclength and Area of sector.notebook
May 14, 2013
Section 11.3: Arclength and Area of Sector
TermDiagram
Sector of circle
(pie shaped region of a circle)
Formula
A=πr2 m
360
Segment of circle Area of sector
(shaded region ­ Area of triangle
between arc and
its chord) Arclength L = 2πr m distance along
an arc measured
in linear units 4
Arclength and Area of sector.notebook
May 14, 2013
Examples:
Find the area of sector JKL:
Find the area of
segment SRQ:
Find the arclength CD 5