AuthorsBoyd•Cummins•MalloyCarter•FloresAbouttheCoverBecauseofitslongandvariedhistory,thecityofLosAngeleshasexcellentexamplesofmodernandhistoricarchitecture.Architectsuseprinciplesofgeometrytocreateattractiveandfunctionalbuildingdesigns.Inthesebuildings,youcanseecircles,triangles,rectangles,prisms,andpyramids.You’lllearnmoreaboutthetwo-andthree-dimensionalobjectsarchitectsoftenuseasthebasisforbuildingdesignsinChapters11and12.AbouttheGraphicsAsetofnestedholedspheres.CreatedwithMathematica.Eachspherewasconstructedbysubdividingthefacesofacubeandprojectingthesubdividedfacesontoasphere.Formoreinformationandforprogramstoconstructsuchgraphics,see:www.wolfram/r/textbook.Copyright©2008byTheMcGraw-HillCompanies,Inc.Allrightsreserved.ExceptaspermittedundertheUnitedStatesCopyrightAct,nopartofthispublicationmaybereproducedordistributedinanyformorbyanymeans,orstoredinadatabaseorretrievalsystem,withoutpriorpermissionofthepublisher.TheGeometer’sSketchpad®isaregisteredtrademarkofKeyCurriculumPress.Sendallinquiriesto:Glencoe/McGraw-Hill8787OrionPlaceColumbus,OH43240-4027ISBN:978-0-07-877854-4MHID:0-07-877854-9PrintedintheUnitedStatesofAmerica.12345678910043/07116151413121110090807ContentsinBriefUnit1GeometricStructure1ToolsofGeometry2ReasoningandProof3ParallelandPerpendicularLinesUnit2Congruence4CongruentTriangles5RelationshipsinTriangles6QuadrilateralsUnit3Similarity7ProportionsandSimilarity8RightTrianglesandTrigonometry9TransformationsUnit4Two-andThree-DimensionalMeasurement10Circles11AreasofPolygonsandCircles12ExtendingSurfaceArea13ExtendingVolumeStandardsReviewiiiivAuthorsMeettheAuthorsatca.geometryonline.comCindyJ.BoydMathematicsTeacherAbileneHighSchoolAbilene,TexasJerryCumminsFormerPresidentNationalCouncilofSupervisorsofMathematicsWesternSprings,IllinoisCarolE.Malloy,Ph.D.AssociateProfessorUniversityofNorthCarolinaatChapelHillChapelHill,NorthCarolinaJohnA.Carter,Ph.D.DirectorofMathematicsAdlaiE.StevensonHighSchoolLincolnshire,IllinoisAlfinioFlores,Ph.D.ProfessorArizona...
