1. Sector of a Circle Section 11.5

2.  If a circle has a radius of 2 inches, then what is its circumference?  What is the length of the arc 172 o around the circle? REVIEW

3.  Arc length – portion of the circumference of a circle  Sector – portion of the area of a circle Definitions & Formulas

4.  Find the area of the red sector below. Sectors

5.  Find the area of the blue sector below. Sectors

6.  Find the EXACT area of a circle with a radius of 4 ft.  What is the area of the sector with a central angle of 90 o ? Area

7.  Find the EXACT area of a circle with a diameter of 6 ft.  What is the area of the sector with a central angle of 120 o ? Area

8.  Given the area of the red sector below, what is the area of circle V? Area

9.  Pg. 750 #11-13, 21-23  Pg. 758 #3-16 Assignment