七年级上册语文第六单元复习doc资料.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,角的计算（解答题）,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,1.如图,已知140，OD平分BOC，求AOD的度数。,A,C,D,B,1,O,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,2.如图，已知AOB=120，OC 是AOB的一平分线，OD是BOC的平分线，求AOD的度数。,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,3.如图，已知O是直线AB上的点，OD是AOC的平分线，OE是COB的平分线，求DOE的度数。,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,4.如图，OB平分AOC，且,2:3:4=1:3:4，,求1、2、3、4。,3,D,C,B,A,2,1,4,O,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,5.如图，已知AOB150，,AOCBOD90，求COD的度数。,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,6.一条射线OA，若从点O再引两条射线OB、OC，使AOB=60，BOC=20，求AOC的度数。,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,7.如图所示，点O是直线AB上一点，OE，OF分别平分AOC和BOC，若AOC68，则BOF和EOF是多少度？,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,8.如图，已知AOC=BOD=78，BOC=35，求AOD。,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,9、如下图，已知AOC=150度,，OB是AOC的平分线，OE，OF,分别是AOB，BOC的平分线,求：BOF与EOB的和,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,10.如图，已知直线AB和CD相交于O点，COE是直角，OF平分AOE，COF=34，求BOD的度数。,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,11.如图，将书页一角斜折过去，使角的顶点A落在A,/,处，BC为折痕，BD平分,A,/,BE，求CBD的度数.,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,12.如图，直线AB、CD相交于点O，OE平分AOC，BOC BOD=20，求BOE的度数。,C,E,B,A,D,O,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,13.如图所示，,OD,平分,BOC，OE,平分,AOC,.若,BOC,=70，,AOC,=50.（1）求出,AOB,及其补角的度数；（2）请求出,DOC,和,AOE,的度数，并判断,DOE,与,AOB,是否互补，并说明理由.,第25题图,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,14.（1）如图，已知AOB=90，BOC=30，OM平分AOC，ON平分BOC，求MON的度数。,（2）如果（1）中的AOB=，其他条件不变，求MON的度数。,（3）如果（1）中BOC=（为锐角），其他条件不变，求MON的度数。,Evaluation only.,Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.,Copyright 2004-2011 Aspose Pty Ltd.,