2022年北师大版初二上册数学练习题2 .pdf

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2022年北师大版初二上册数学练习题2 .pdf

第一部分实数运算法则A:a0；baba(a0,b 0)；baba(a0,b0)1、填空：若14a有意义，则a 能取的最小整数为_.若81x+x81有意义，则3x=_ 若2x=2,则 2x+5 的平方根是 _.144 的算术平方根是，16的平方根是；327=，64的立方根是；7 的平方根为，21.1=；若 a0，则(3a)3=_.若 a2=1，则3a=_.若3aa，则 a_.2、例题：2332.252)32(2322,3)212(32123化简：(1)、250580(2)、(1+5)(52)(3)、2)313(4)、10405104(5)、5145203(6)、.32236(7)、49.0381003(8)、18783333(9)、36662101010(10)、914420045243运算法则B:2a)0(-)0(aaaaa2a（a 0）1、填空若 x0，则2x=_,33x=_.若3xx，则 x=；若xx2，则 x；若 a0，则aa22等于（）若 x=(35)3，则1x=_.已知 0 x3,化简2x+2)3(x=_.当 1x4 时，化简221xx1682xx结果是（）当 2x3，代数式244xx+|2x-6|=x2=(7)2，则 x=_.文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R22、计算：已知某数有两个平方根分别是a+3 与 2a15,求这个数.已知一个数的平方根分别是a+1 和 a-3，求这个数.3、求下列各式中的x.0324)1(2xxx1225)32(28x3+27=0(x+2)3+1=87;第二部分平移与旋转平移：（关键）平移不改变图形的形状和大小，也不会改变图形的方向。（规律）对应点所连的线段平行且相等；对应线段平行且相等，对应角相等。旋转：（关键）旋转不改变图形的形状和大小，但改变图形的方向。（规律）对应点到旋转中心得距离相等，对应点与旋转中心的连线所成的角相等。既是中心对称图形又是轴对称图形的是有：线段、矩形、菱形、正方形、圆；平行四边形只是中心对称图形，等腰梯形只是轴对称图形；正奇边形不是中心对称图形，是轴对称图形；正偶边形是中心对称图形，也是轴对称图形。一、选择题1、下列说法正确的是（）A、平移不改变图形的形状和大小，而旋转则改变图形的形状和大小B、平移和旋转的共同点是改变图形的位置C、图形可以向某方向平移一定距离，也可以向某方向旋转一定距离文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2DBCAEFBCAABCOABFDCEBAFDECD、在平移和旋转图形中，对应角相等，对应线段相等且平行2、如图 1，DEF 是由 ABC 经过平移后得到的，则平移的距离是（）A、线段 BE 的长度B、线段 EC 的长度C、线段 BC 的长度D、线段 EF 的长度3、如图 2，ABC 与 AB C关于点O 成中心对称，则下列结论不成立的是（）A、点 A 与点 A是对称点B、BO=B O C、ABABD、ACB=CAB图 1 图 2 4、下列图形中既是轴对称图形，又是中心对称图形的是（）A、平行四边形B、等边三角形C、正方形D、直角三角形5、将一图形绕着点O 顺时针方向旋转700后，再绕着点O 逆时针方向旋转1200，这时如果要使图形回到原来的位置，需要将图形绕着点O 什么方向旋转多少度？（）A、顺时针方向500B、逆时针方向500C、顺时针方向1900D、逆时针方向19006、下列说法不正确的是（）A、中心对称图形一定是旋转对称图形B、轴对称图形一定是中心对称图形C、在成中心对称的两个图形中，连结对称点的线段都被对称中心平分D、在平移过程中，对应点所连的线段也可能在一条直线上7、如图 3，图形旋转一定角度后能与自身重合,则旋转的角度可能是()A、300B、600C、900D、12008、如图 4，面积为 12cm2的 ABC 沿 BC 方向平移至DEF 的位置，平移的距离是边BC 长的两倍，则图中的四边形ACED 的面积为（）A、24cm2B、36cm2C、48cm2D、无法确定9、如图 5，在正方形ABCD 中，E 为 DC 边上的点，连结BE，将 BCE 绕点 C 顺时针方向旋转900得到DCF，连结 EF，若 BEC=600，则 EFD 的度数为（）A、100B、150C、200D、250文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2ABCBABCABCEABCDGF图 3 图 4 图 5 10、下列图形中，绕某个点旋转180后能与自身重合的有（）正方形长方形等边三角形线段角平行四边形A.5 个B.2 个C.3 个D.4 个11、从 8:55 到 9:15,钟表的分针转动的角度是，时针转动的角度是。（）A.120 0、10 0B.30 0、15 0C.12 0、60 0D.10 0、120 0 12、如图 6，D 是等腰 RtABC 内一点，BC 是斜边，如果将ABD 绕点 A 按逆时针方向旋转到ACD的位置，则ADD 的度数是（）图 6 A.25B.30C.35D.45二、填空题1、等边三角形至少旋转_度才能与自身重合。2、如图 7，ABC 以点 A 为旋转中心，按逆时针方向旋转600，得 AB C，则 ABB 是 _三角形。3、如图 8，在四边形ABCD 中，AD BC，BCAD，B 与 C 互余，将 AB，CD 分别平移到EF 和 EG的位置，则EFG 为_三角形，若AD=2cm，BC=8cm，则 FG=_。4、如图 9，把三角形ABC 绕着点 C 顺时针旋转350，得到 ABC，AB交 AC 于点 D，若 ADC=900，则 A 的度数是 _。图 7 图 8 图 9 第三部分平行四边形一、选择题1、下列图形不是轴对称图形的是（）文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2（A）平行四边形（B）矩形（C）菱形（D）等腰梯形2、矩形的面积为120cm2，周长为46cm，则它的对角线长为（）A、15cm B、16cm C、17cm D、18cm 3、如图 1，等腰梯形ABCDK 中，AD BC，AD=5，AB=6，BC=8，AEDC，则 ABE 的周长是（）A、3 B、12 C、15 D、19 4、ABCD 的周长为40cm，ABC 的周长为25cm，则对角线AC 的长为（）（A）6cm（B）15cm（C）5cm（D）16cm 5、如图 2，梯形 ABCD 中 AD BC，AB=CD,延长 CB 至 E，使EB=AD，连接 AE，则下列结论不成立的是（）（A）BC=CA（B）EA=AC（C）DAC=E（D）ABE=D 图 1 6、已知菱形的两条对角线长分别是4cm 和 8cm，则与此菱形同面积的正方形的边长是（）（A）8cm（B）24cm（C）22cm（D）4cm 7、用两个全等的直角三角形拼下列图形：平行四边形矩形菱形正方形等腰三角等边三角形，一定可以拼成的是（）（A）（B）（C）（D）8、如图 3，在 RtABC 中，BAC=90，D、E 分别是 AB、BC 的中点，F 在 CA 延长线上，FDA=B，AC=6，AB=8，则四边形AEDF 的周长为（）（A）16（B）20（C）18（D）22 图 1 图 2 图 3 9、如图 4，在正方形ABCD 中，E 为 DC 边上的点，连接BE，将 BCE 绕点 C?顺时针方向旋转90得到 DCF，连接 EF若 BEC=60，则EFD 的度数为（）图 4（A）10（B）15（C）20（D）2510、如图 5，ABCD 中，对角线AC、BD 交于点 O，点 E 是 BC 的中点若 OE=3 cm，则 AB 的长为()A 3 cm B6 cm C9 cm D12 cm 图 5 二、填空题（每小题3 分，共 24 分）B A DAE C 文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R211、等腰梯形上底为6cm,下底为 8 cm,高为3cm,则腰长为 _ 12、已知等腰梯形ABCD 的中位线 EF 的长为 6，腰 AD 的长为 5，则该等腰梯形的周长为13、如图 6，在正方形ABCD 内取一点 M，使 MAB 是等边三角形，那么DMC 的度数是14、如图 7，在正方形ABCD 中，E 是对角线BD 上任意一点，过E 作 EFBC 于 F，作 EGCD 于 G，若正方形 ABCD 的周长为m，则四边形EFCG 的周长为15、如图 8，用 8 块相同的小矩形地砖拼成一个大矩形，则每个小矩形的面积是16、如图 9，在等腰梯形ABCD 中，对角线AC=BC+AD，则 ACB 的度数是图 6 图 7 图 8 图 9 文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 ZC6B2J4P5R2文档编码:CT5G2Z4R7R3 HJ8T8T4W9J3 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