geometry success in 20 minutes a day 2nd ed (learning express, 2005) ww外语英文电子书

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1、GEOMETRYSUCCESSIN20MINUTESADAY2ndEdition®NEWYORKTeam-LRNCopyright©2005LearningExpress,LLC.AllrightsreservedunderInternationalandPan-AmericanCopyrightConventions.PublishedintheUnitedStatesbyLearningExpress,LLC,NewYork.LibraryofCongressCataloging-in-Public

2、ationData:Geometrysuccess:in20minutesaday—2nded.p.cm.ISBN1-57685-526-0(pbk.)1.Geometry—Studyandteaching.I.Title.QA461.T462005516—dc222005047189PrintedintheUnitedStatesofAmerica987654321SecondEditionISBN1-57685-526-0ForinformationonLearningExpress,otherLe

3、arningExpressproducts,orbulksales,pleasewritetousat:LearningExpress55Broadway8thFloorNewYork,NY10006Orvisitusat:www.learnatest.comTeam-LRNContentsINTRODUCTIONviiPRETEST1LESSON1TheBasicBuildingBlocksofGeometry13Explainsthebasicbuildingblocksofgeometry:poi

4、nts,lines,rays,linesegments,andplanesLESSON2TypesofAngles23Describesright,acute,obtuse,andstraightanglesLESSON3WorkingwithLines29Describesperpendicular,transversal,parallel,andskewlinesandshowshowtosolveproblemsinvolvingthemLESSON4MeasuringAngles37Descri

5、beshowtomeasureanddrawavarietyofanglesusingaprotractorandhowtoaddandsubtractanglemeasuresLESSON5PairsofAngles45Explainsthespecialrelationshipsthatexistbetweencomplementary,supplementary,andverticalanglesLESSON6TypesofTriangles51Showshowtoidentifyscalene,

6、isosceles,equilateral,acute,equilangular,right,andobtusetrianglesTeam-LRNiii–CONTENTS–LESSON7CongruentTriangles59DefinescongruenttrianglesandshowshowtoprovethattrianglesarecongruentLESSON8TrianglesandthePythagoreanTheorem67Showshowthevariouspartsofarightt

7、rianglearerelatedandhowtousethePythagoreantheoremanditsconversetosolveproblemsLESSON9PropertiesofPolygons77Describesplanefiguressuchasdecagons,hexagons,pentagons,andoctagonsandshowshowtofindtheirinteriorandexterioranglemeasurementsLESSON10Quadrilaterals85D

8、iscussesthevariouspropertiesofparallelogramsandtrapezoidsandexplainswhytheyarequadrilateralsLESSON11Ratio,Proportion,andSimilarity93Explainsratio,proportion,andsimilarityandshowshowtodiscerniftrianglesaresimilarLESSON12Per