2021年浙教版九年级数学上册第4章相似三角形复习题.pdf

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1、1/6 第 4 章相似三角形类型之一比例线段及比例的性质1若mnab，则下列比例式中错误的是()A.amnbB.manbC.anmbD.mabn2在比例尺为1 10000的地图上，一块面积为2 cm2的区域表示的实际面积是()A2019000 cm2B20190 m2C4000000 m2D40000 m23已知x 2y 3z 4，求2x3yzz2y3x的值类型之二相似三角形的判定与性质4 2019 自贡如图 4X1，在ABC中，MNBC，分别交AB，AC于点M，N，若AM1，MB2，BC3，则MN的长为 _图 4X1图 4X 25如图 4X2，F是?ABCD的边CD上一点，直线BF交AD的延

2、长线于点E，则下列结论错误的是()A.EDEADFABB.DEBCEFFBC.BCDEBFBED.BFBEBCAE图 4 X 362019 潍坊如图 4X3，在ABC中，ABAC，D，E分别为边AB，AC上的点，AC3AD，AB 3AE，精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 1 页，共 6 页2/6 F为BC边上一点，添加一个条件：_，可以使得FDB与ADE相似(只需写出一个)7如图 4X4，已知正方形ABCD的边长为1，F为CD边上一动点，作EFAE交BC于点E.(1)求证：ABEECF；(2)设BEx，DFy，求y与x之间的函数表达式图 4X482019 宿迁如

3、图 4X5，在ABC中，ABAC，点E在边BC上移动(点E不与点B，C重合)，满足DEFB，且点D，F分别在边AB，AC上(1)求证：BDECEF；(2)当点E移动到BC的中点时，求证：FE平分DFC.图 4 X 5类型之三相似三角形的应用图 4 X 69如图 4X6，小明在打网球时，球恰好能打过网，而且落点恰好在离网6 m 的位置上，则球拍击球的高度h为()A.815B1 C.43D.85图 4 X 710为了测量校园内一棵高不可攀的树的高度，学校数学应用实践小组做了如下的探索：根据光的反射定律，利用一面镜子和皮尺，设计如图4X7 所示的测量方案，把镜子放在离树(AB)8.7 m的点E处，然

4、后观测者沿着直线BE后退到点D，这时恰好在镜子里看到树梢顶点A，再用皮尺量得DE2.7 m，观测者高CD1.6 m，则树高AB约是 _(精确到 0.1 m)11如图 4X8，ABC为锐角三角形，AD是BC边上的高，正方形EFGH的一边FG在BC上，顶点E，H分别在AB，AC上，已知BC40 cm，AD30 cm.(1)求证：AEHABC；(2)求正方形EFGH的边长与面积图 4 X 8类型之四相似多边形的判定和性质图 4X9122019 金华外国语学校模拟如图4X 9，已知矩形ABCD中，AB1，在BC上取一点E，沿AE将ABE向上折叠，使点B落在AD上的点F处若四边形EFDC与矩形ABCD相

5、似，则AD_13如图 4X10 所示，一般书本的纸张是由原纸张多次对开得到的，矩形ABCD沿EF对开后，再把矩形EFCD沿MN对开，依此类推，若各种开本的矩形都相似，则ABAD等于多少？精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 2 页，共 6 页文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M

6、1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编

7、码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T

8、6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10

9、J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2

10、J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1

11、V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5

12、M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U53/6 图 4X10类型之五数学活动14ABC和DEF是两个全等的等腰直角三角形，BACEDF90，DEF的顶点E与ABC的斜边BC的中点重合，将DEF绕点E旋转，旋转过程中，线段DE与线段AB相交于点P，线段EF与射线CA相交于点Q.(1)如图 4X 11，当点Q在线段AC上，且APAQ时，求证：BPECQE.(2)如图 4X 11，当点Q在线段CA的延长线上时，求证：BPECEQ；并求当BP2，CQ9 时BC的长图 4X11详解详析1B2B 解析 设实际面积是x cm2，则2x110000

13、2，解得x201900000.又 1 m210000 cm2，201900000 cm220190 m2.故选 B.3解：设x 2y 3z 4k(k 0)，则x2k，y3k，z 4k，所以2x3yzz2y3x4k9k 4k4k6k 6k94.41 解析 MNBC，AMNABC，AMABMNBC.AM1，MB2，BC 3，11 2MN3，解得MN1.5 C 解析 由四边形ABCD是平行四边形可得ADBC，EDFEAB，EDFBCF，BCFEAB，所以EDEADFAB，DEBCEFFB，BFBEBCAE，所以选项A，B，D 正确故选C.6 答案不唯一，如ABDF或ABFD或ADEBFD或ADEBD

14、F或DFAC或BDAEBFDE或精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 3 页，共 6 页文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ

15、5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10

16、M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档

17、编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6

18、T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P1

19、0J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK

20、2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U54/6 BDDEBFAE解析 AC3AD，AB3AE

21、，ADACAEAB13.又AA,ADEACB，AEDB.故要使FDB与ADE相似，只需再添加一组对应角相等或夹角的两边成比例即可7解：(1)证明：BC 90，EFAE，BAEAEB90，CEFAEB90，BAECEF，ABEECF.(2)ABEECF，BECFABCE，即x1y11x，yx2x1.8证明：(1)ABAC，BC.DEFCEFBBDE，DEFB，CEFBDE，BDECEF.(2)由BDECEF得BECFDEEF.E是BC的中点，BECE，CECFDEEF，即CEDECFEF.BC，DEFB，CDEF，CEFEDF，CFEEFD，即FE平分DFC.9C 解析 利用相似三角形的判定与性

22、质，易得0.8h664，h43.105.2 m 解析 由题意知CDEABE90，精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 4 页，共 6 页文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6

23、T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P1

24、0J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK

25、2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L

26、1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ

27、5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10

28、M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U55/

29、6 由光的反射原理可知CEDAEB，CEDAEB，CDDEABBE，1.62.7AB8.7，AB5.2(m)11解：(1)证明：四边形EFGH是正方形，EHBC，AEHABC.(2)设AD与EH相交于点M.EFDFEMFDM90，四边形EFDM是矩形，EFDM.设正方形EFGH的边长为x cm.AEHABC，EHBCAMAD，x4030 x30，x1207，正方形EFGH的边长为1207cm，面积为1440049cm2.12.512解析 设ADx，由四边形EFDC与矩形ABCD相似，可得EFBCDFAB，即1xx11，得x2x 10，解得x512(负值已舍去)13解：设AD2AEx，ABy.矩

30、形ABCD与矩形AEFB相似，AEABABAD，即AB2AEAD，y212xx，y2x212，yx22，精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 5 页，共 6 页文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10

31、M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档

32、编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6

33、T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P1

34、0J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK

35、2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L

36、1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ

37、5M1D10M1U56/6 ABAD22.14解：(1)证明：ABC是等腰直角三角形，ABAC，BC45.又APAQ，BPCQ.E是BC的中点，BECE，BPECQE.(2)ABC和DEF是两个全等的等腰直角三角形，BCDEF45.BEQEQCC，即BEPDEFEQCC，BEP45EQC45，BEP EQC,BPE CEQ，BPCEBECQ.BP2，CQ9，BECE，BE218，BE 3 2(负值已舍)，BC 6 2.精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 6 页，共 6 页文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:

38、CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U

39、4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1

40、 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7

41、P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4

42、 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1

43、D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5文档编码:CV6T6U4P10J1 HK2J7P2L1V4 ZJ5M1D10M1U5