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  • 1. 11.5AreaofCircles&SectorsMarch07,2012Bellworkabout56.5cm.8.64cm100.53cm7.64ftHWpg.758#331odds1

2. 11.5AreaofCircles&SectorsMarch07,201211.5 Areas of Circles & SectorsArea of Circle = r2 (fuzzy wuzzy)4.2m Acirclehasanareaof 38.485 in2. What is the circumference of the circle?HWpg.758#331odds2 3. 11.5AreaofCircles&SectorsMarch07,2012Findtheareaoftheshadedregion. 20in 10cmHWpg.758#331odds3 4. 11.5AreaofCircles&Sectors March07,2012 Sector of a Circle: region bounded by 2 radii of a circle & the included arcFormula for the Area of a Sector:portion of the circle times the area of the circle Asector = xr 2360 o 120r=3cmo 60 r=6cmHWpg.758#331odds 4 5. 11.5AreaofCircles&SectorsMarch07,2012Segment of a Circle:region bounded by a chord of a circle & the included arcr=8cmHWpg.758#331odds5 6. 11.5AreaofCircles&Sectors March07,2012Annulus:region bounded by two concentric circlesHWpg.758#331odds 6 7. 11.5AreaofCircles&SectorsMarch07,2012R=12cmr=9cm R r 60o Theshadedareais12cm2. Findr.120o rHWpg.758#331odds7 8. 11.5AreaofCircles&Sectors March07,2012 11.5 HW pg. 758 #3-31 oddsHWpg.758#331odds 8