2016-2017学年广东省广州市黄埔区八年级(上)期末数学试卷.pdf

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1、第1页共 18页2016-2017 学年广东省广州市黄埔区八年级上期末数学试卷一、选择题本大题共10 小题，每题2分，共 20 分1 2 分在直角坐标系中，点A 3，5与点B关于x轴对称，则AB 3，5BB 3，5CB5，3DB5，32 2 分在ABC中，其两个内角如下，则能判定ABC为等腰三角形的是AA=40，B=50BA=40，B=60CA=20，B=80DA=40，B=803 2 分如图，已知ABCDEF，点B与点E是对应点，点A与点D是对应点，以下说法不一定成立的是AABDEBACDFCBEECDBECF4 2 分如图，点E在线段AB上，假设ACAD，CEDE，则图中的全等三角形共有A

2、1 对B2 对C3 对D4 对5 2 分假设等腰三角形的两边长分别是3，5，则第三边长是A3 B5 C3 或 5 D4 或 6 6 2 分如图，线段AB与CD相交于点P，ACBD，A=39，D=50，则A39APDB50APDC89APDD76APD7 2 分计算23()aa的结果有A6aB6aC5aD5a第2页共 18页8 2 分与分式abab相等的是AababBababCababDabab9 2 分以下式子可利用平方差公式计算的是A(3)(3)ababB(43)(34)baabC()()ababD(2)(3)abab10 2 分到三角形三边距离相等的点是A三角形的两条平分线的交点B三角形的

3、两条高的交点C三角形的三条中线的交点D三角形的三条边的垂直平分线的交点二、填空题本大题共6 小题，每题3 分，共 18 分11 3 分分解因式：abbc=12 3 分假设分式12x有意义，则x的取值范围为13 3 分假设(-3)1mm成立，则m的值为14 3 分如图，在ABC中，DBDC，比较ABD的面积与ADC的面积的大小，则ABDSADCS填写“”，“=”，“”15 3 分以下语句：关于一条直线对称的两个图形一定能重合；两个能重合的图形一定关于某条直线对称；一个轴对称图形不一定只有一条对称轴；假设两个图形关于某条直线对称，则其对称点一定在对称轴的两侧其中正确的选项是填序号16 3 分在AB

4、C中，90B，AD平分BAC交BC于D，DE是AC的垂直平分线，假设1BD，那么BC=文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:

5、CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8

6、Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7

7、 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F

8、9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T

9、2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y

10、5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8第3页共 18页三、解答题本大题共8 题，共 62 分17 6 分尺规作图不写作法

11、，保留作图痕迹如图，已知ABC，求作ABC的高AD18 6 分如图，在ABC中，BD为ABC的角平分线，如果47A，116ADB，求ABC和C的度数19 8 分计算：1()()a abb ab22(2)(2)(2)2(2)xyyxyxx xy20 8 分计算：122153714x yxyabab；2231926xx文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H

12、7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10

13、F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4

14、T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8

15、Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5

16、Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码

17、:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V

18、8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8第4页共 18页21 8 分如图，在ABC中，ABAC，AEAF，BF与CE相交于D1求证：AECAFB；2求证：EDFD22 8 分甲做 360 个零件与乙做480 个零件所用的时间相等，已知甲比乙每天少做2 个零件，求甲、乙每天各做多少个零件？23 8 分如图，在ABC中，AD平分BAC交BC于D，DEAC交AB于E，过E作EFAD，垂足为H，并交BC延长线于F1求证：AEED；2Q请猜想B与CAF的大小关系，并证明你的结论24 10 分两个不

19、相等的实数a，b满足225ab1假设2ab，求ab的值；2假设22aam，22bbm，求ab和m的值文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5

20、Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码

21、:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V

22、8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H

23、7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10

24、F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4

25、T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8第5页共 18页2016-2017 学年广东省广州市黄埔区八年级上期

26、末数学试卷参考答案与试题解析一、选择题本大题共10 小题，每题2分，共 20 分1 2 分 2016 秋?黄埔区期末在直角坐标系中，点A 3，5与点 B 关于 x 轴对称，则AB3，5BB 3，5CB5，3DB5，3【分析】根据“关于 x 轴对称的点，横坐标相同，纵坐标互为相反数”求解即可【解答】解：点 A 3，5与点 B 关于 x 轴对称，点 B 的坐标为 3，5 故选 B【点评】此题考查了关于x 轴、y 轴对称的点的坐标，解决此题的关键是掌握好对称点的坐标规律：1关于 x 轴对称的点，横坐标相同，纵坐标互为相反数；2关于 y 轴对称的点，纵坐标相同，横坐标互为相反数2 2 分 2016?岳

27、池县模拟在ABC 中，其两个内角如下，则能判定ABC 为等腰三角形的是A A=40，B=50B A=40，B=60C A=20，B=80 D A=40，B=80【分析】根据等腰三角形性质，利用三角形内角定理对4 个选项逐一进行分析即可得到答案【解答】解；当顶角为A=40 时，C=70 50，当顶角为 B=50 时，C=65 40所以 A 选项错误当顶角为 B=60 时，A=60 40，当 A=40 时，B=70 60，所以 B 选项错误当顶角为 A=40 时，C=70 =B，所以 C 选项正确当顶角为 A=40 时，B=70 80，文档编码:CH10V8Y3R9H7 HX10F9K3J4T2

28、ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W

29、2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文

30、档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH

31、10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3

32、R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 H

33、X10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K

34、3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8第6页共 18页当顶角为 B=80 时，A=50 40所以 D 选项错误故选 C【点评】此题主要考查学生对等腰三角形的性质和三角形内角和定理的理解和掌握，解答此题的关键是熟练掌握三角形内角和定理3 2 分 2016 秋?黄埔区期末

35、如图，已知ABC DEF，点 B 与点 E 是对应点，点A与点 D 是对应点，以下说法不一定成立的是AAB=DE BAC=DF CBE=EC DBE=CF【分析】根据全等三角形的性质判定即可【解答】解：ABC DEF，AB=DE，AC=DF，BC=EF，BE=CF，故选 C【点评】此题主要考查了三角形全等的性质，关键是根据全等三角形的性质得出对应边相等4 2 分 2016 秋?黄埔区期末如图，点E 在线段 AB 上，假设 AC=AD，CE=DE，则图中的全等三角形共有A1 对 B2 对C3 对D4 对【分 析】由 已 知 易 得 ACE ADE，从 而 运 用 全 等 三 角 形 性 质 及

36、判 定 方 法 证 明CEB DEB，ABC ABD【解答】解：图中的全等三角形共有3 对AC=AD，CE=DE，AE 公共，文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J

37、4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB

38、8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I

39、5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编

40、码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10

41、V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9

42、H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8第7页共 18页 ACE ADE SSS进

43、而得出 CEB DEB，ABC ABD；故选 C【点评】此题考查了全等三角形的判定和性质，注意不要漏解52 分 2016 秋?黄埔区期末 假设等腰三角形的两边长分别是3，5，则第三边长是 A3 B5 C3 或 5 D4 或 6【分析】题目给出等腰三角形有两条边长为3 和 5，而没有明确腰、底分别是多少，所以要进行讨论，还要应用三角形的三边关系验证能否组成三角形【解答】解：由题意得，当腰为3 时，则第三边也为腰，为3，此时 3+35故以 3，3，5可构成三角形；当腰为 5 时，则第三边也为腰，此时3+55，故以 3，5，5 可构成三角形故第三边长是3 或 5故选：C【点评】此题考查了等腰三角形的

44、性质和三角形的三边关系；已知没有明确腰和底边的题目一定要想到两种情况，分类进行讨论，还应验证各种情况是否能构成三角形进行解答，这点非常重要，也是解题的关键6 2 分 2016 秋?黄埔区期末如图，线段AB 与 CD 相交于点 P，AC BD，A=39，D=50，则A APD=39B APD=50C APD=89D APD=76【分析】先根据平行线的性质，得出 B=A=39，再根据三角形外角性质，得出APD=B+D=39+50=89 即可【解答】解：AC BD，A=39，B=A=39，APD 是BDP 的外角，文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文

45、档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH

46、10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3

47、R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 H

48、X10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K

49、3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2

50、ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W2I5Y8文档编码:CH10V8Y3R9H7 HX10F9K3J4T2 ZB8Y5W