AreaandPerimeterReview
Mrs.Pillar
13. Findthecircumferenceandareaofthecircle.
14. Findtheareaandcircumferenceofthecircleintermsofπ.
15. Serena’sgardenisarectanglejoinedwithasemicircle.Asshowninthediagrambelow.
LineABisthediamterofsemicircleP.Serenawantstoputafencearoundhergarden.
CalculatethelengthofthefenceSerenaneedstothenearesttenthofafoot.Hint:Find
theperimeteroftheentirefigure.
16. TheRockSolidConreteCompanyhasbeenaskedtopavearectangulararea
surroundingacircularfountainwithadiameterof8feet,asshowninthediagram.Find
theareatothenearestsquarefoot,thatmustbepaved.Findthecost,indollars,of
pavingtheareaiftheRockSolidConcretecomanpy
charges$8.95persquarefoot.
17. InthediagrambelowofrectangleAFEBandasemicirclewithdiamterCD,AB=5inches,
AB=BC=DE=FE,andCD=6inches.Findtheareaoftheshadedregion,tothenearest
hundrethofasquareinch.
18. Findtheareaoftheshadedportionofthefigure.Dimensionsareincentimeters.
19. Findtheareaofthefiguresbelow.
a. b. c. 20. GivenTriangleABCwithA(‐3,‐1),B(1,3)andC(4,‐1).
a. FindtheareaoftriangleABC.
b. FindtheperimeteroftriangleABC.Express
theanswertothenearesttenthofaunit.
21. Givem:ABCDEFwithA(0,‐4),B(2,‐1),C(2,3),D(0,4),E(‐2,3)andF(‐2,‐1).
a. FindtheareaofABCDEF.
b. Isthisa“regular”hexagon?Explain.