西南大学22春《0775 中学几何研究》在线作业
0775 中学几何研究1.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602760364975051541.png" title="202010151602760364975051541.png" alt="图片.png"/>
答案资料下载请参考帮助中心说明
A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602760428081066558.png" title="202010151602760428081066558.png" alt="图片.png"/>
B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602760392275012771.png" title="202010151602760392275012771.png" alt="图片.png"/>
C.不能判断
D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602760410421043843.png" title="202010151602760410421043843.png" alt="图片.png"/>
2.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602759429035037739.png" title="202010151602759429035037739.png" alt="图片.png"/>
A.不能判断
B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602759484379004228.png" title="202010151602759484379004228.png" alt="图片.png"/>
C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602759461298002569.png" title="202010151602759461298002569.png" alt="图片.png"/>
D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602759509206075952.png" title="202010151602759509206075952.png" alt="图片.png"/>
3.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602761321059053949.png" title="202010151602761321059053949.png" alt="图片.png"/>
A.10
B.8
C.6
D.12
4.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/10/202010101602312442650069004.png" title="202010101602312442650069004.png" alt="图片.png"/>
A.不能判断
B.垂线
C.中线
D.角平分线
5.[单选题] 已知线段a及单位长度，不能用尺规作图法作出的是（ ）
A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/10/202010101602318006419031416.png" title="202010101602318006419031416.png" alt="图片.png"/>
B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/10/202010101602317923578036545.png" title="202010101602317923578036545.png" alt="图片.png"/>
C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/10/202010101602317960098018212.png" title="202010101602317960098018212.png" alt="图片.png"/>
D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/10/202010101602317986105081181.png" title="202010101602317986105081181.png" alt="图片.png"/>
6.[单选题] 下列图形中，四点不一定共圆的是（ ）
A.等腰梯形
B.矩形
C.正方形
D.菱形
7.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602765656293050189.png" title="202010151602765656293050189.png" alt="图片.png"/>
A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602765730480025520.png" title="202010151602765730480025520.png" alt="图片.png"/>
B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602765713811013846.png" title="202010151602765713811013846.png" alt="图片.png"/>
C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602765686139066456.png" title="202010151602765686139066456.png" alt="图片.png"/>
D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602765756873040825.png" title="202010151602765756873040825.png" alt="图片.png"/>
8.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602766978152036298.png" title="202010151602766978152036298.png" alt="图片.png"/>
A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602767059842090434.png" title="202010151602767059842090434.png" alt="图片.png"/>
B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602767040791066781.png" title="202010151602767040791066781.png" alt="图片.png"/>
C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602767008324046508.png" title="202010151602767008324046508.png" alt="图片.png"/>
D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602767023270057826.png" title="202010151602767023270057826.png" alt="图片.png"/>
9.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602751539608028127.png" title="202010151602751539608028127.png" alt="图片.png"/>
A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602751609876035741.png" title="202010151602751609876035741.png" alt="图片.png"/>
B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602751629935033978.png" title="202010151602751629935033978.png" alt="图片.png"/> 四川大学作业无忧答案网整理
C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602751569198053214.png" title="202010151602751569198053214.png" alt="图片.png"/>
D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602751587788049288.png" title="202010151602751587788049288.png" alt="图片.png"/>
10.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602761264245077338.png" title="202010151602761264245077338.png" alt="图片.png"/>
A.5
B.3
C.不能确定
D.10
11.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602761465406016315.png" title="202010151602761465406016315.png" alt="图片.png"/>
A.1/4
B.1/3
C.1/6
D.1/5
12.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602765793171075343.png" title="202010151602765793171075343.png" alt="图片.png"/>
A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602765822993047215.png" title="202010151602765822993047215.png" alt="图片.png"/>
B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602765841552062450.png" title="202010151602765841552062450.png" alt="图片.png"/>
C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602765880047065910.png" title="202010151602765880047065910.png" alt="图片.png"/>
D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602765860972098649.png" title="202010151602765860972098649.png" alt="图片.png"/>
13.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602766591151046018.png" title="202010151602766591151046018.png" alt="图片.png"/>
A.不能确定
B.3
C.2
D.4
14.[单选题] 若三角形两边上的垂线相等，则此三角形为（ ）
A.不能判断
B.直角三角形
C.等腰三角形
D.等边三角形
15.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602766648748017766.png" title="202010151602766648748017766.png" alt="图片.png"/>
A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602766688470059005.png" title="202010151602766688470059005.png" alt="图片.png"/>
B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602766703245033472.png" title="202010151602766703245033472.png" alt="图片.png"/>
C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/15/202010151602766675278005635.png" title="202010151602766675278005635.png" alt="图片.png"/>
D.不能确定
16.[判断题] 内接于圆的四边形必满足对角线之积等于对边乘积之和。（ ）
A.正确
B.错误
17.[判断题] 在平移变换下，直线变为与它平行的直线。（ ）
A.正确
B.错误
18.[判断题] 三角形中大边所对的中线较小。（ ）
A.正确
B.错误
19.[判断题] 三角形的内心到三顶点的距离相等。（ ）
A.正确
B.错误
20.[判断题] 三角形中大边所对的角平分线较小。（ ）
A.正确
B.错误
21.[判断题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/08/202010081602154918272097837.png" title="202010081602154918272097837.png" alt="图片.png"/>，则<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/08/202010081602154956200057457.png" title="202010081602154956200057457.png" alt="图片.png"/>。（ ）
A.正确
B.错误
22.[判断题] 若<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/08/202010081602154253956089953.png" title="202010081602154253956089953.png" alt="图片.png"/>的必要不充分条件。（ ）
A.正确
B.错误
23.[判断题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/08/202010081602154418638042716.png" title="202010081602154418638042716.png" alt="图片.png"/>的必要不充分条件。（ ）
A.正确
B.错误
24.[判断题] 在周长一定的平面n边形中，正n边形的面积最大。（ ）
A.正确
B.错误
25.[判断题] 三角形的三中垂线共点于外心。（ ）
A.正确
B.错误
26.[判断题] 平面内到两定点距离的平方差为常量的点的轨迹是一条直线。（ ）
A.正确
B.错误
27.[判断题] 如果一个三角形两边上的高线的交点在三角形外部，则该三角形是钝角三角形。（ ）
A.正确
B.错误
28.[判断题] 用反证法证明问题的理论根据是原命题与逆否命题同真同假。（ ）
A.正确
B.错误
29.[判断题] 两圆的内公切线等于外公切线。（ ）
A.正确
B.错误
30.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181603023334875080176.png" title="202010181603023334875080176.png" alt="图片.png"/>
A.
31.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181602990448299024169.png" title="202010181602990448299024169.png" alt="图片.png"/>
A.
32.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/16/202010161602848294863027350.png" title="202010161602848294863027350.png" alt="图片.png"/>
A.
33.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181602989667449096982.png" title="202010181602989667449096982.png" alt="图片.png"/>
A.
34.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/17/202010171602927227179011799.png" title="202010171602927227179011799.png" alt="图片.png"/>
A.
35.[主观填空题] 平面内到两定点距离之比不为1的点的轨迹是-圆，该圆叫（ ）。
A.
36.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181602990658414326408.png" title="202010181602990658414326408.png" alt="图片.png"/>
A.
37.[主观填空题] 等腰梯形两底之差等于腰长，则这个等腰梯形的锐角是（ ）度。
A.
38.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/16/202010161602847935276072259.png" title="202010161602847935276072259.png" alt="图片.png"/>
A.
39.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181602989866076099520.png" title="202010181602989866076099520.png" alt="图片.png"/>
A.
40.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181603023421866037252.png" title="202010181603023421866037252.png" alt="图片.png"/>
A.
41.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181603022977496085043.png" title="202010181603022977496085043.png" alt="图片.png"/>
A.
42.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/16/202010161602850706267065725.png" title="202010161602850706267065725.png" alt="图片.png"/>
A.
43.[主观填空题] 古典的尺规作图不可能三问题是（ ）。
A.
44.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181603023037995017174.png" title="202010181603023037995017174.png" alt="图片.png"/>
A.
45.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/24/202010241603525028005032019.png" title="202010241603525028005032019.png" alt="图片.png"/>
A.
46.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/16/202010161602850849613002587.png" title="202010161602850849613002587.png" alt="图片.png"/>
A.
47.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181603024598671045765.png" title="202010181603024598671045765.png" alt="图片.png"/>
A.
48.[主观填空题] “角平分线上的点到两边的距离相等“的逆命题是（ ）。
A.
49.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/16/202010161602851276487053732.png" title="202010161602851276487053732.png" alt="图片.png"/>
A.
50.[主观填空题] 直角三角形的外心为（ ）。
A.
51.[主观填空题] 菱形的两条对角线长分别为6和8，则菱形的边长为（ ）。
A.
52.[主观填空题] “等腰三角形的两底角相等”的逆否命题是（ ）。
A.
53.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181602990556352035101.png" title="202010181602990556352035101.png" alt="图片.png"/>
A.
54.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181602989762650030066.png" title="202010181602989762650030066.png" alt="图片.png"/>
A.
55.[主观填空题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/18/202010181602991194553018720.png" title="202010181602991194553018720.png" alt="图片.png"/>
A.
56.[问答题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/10/202010101602294699748067585.png" title="202010101602294699748067585.png" alt="图片.png"/>
A.
57.[问答题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/09/202010091602217712449018413.png" title="202010091602217712449018413.png" alt="图片.png"/>
A.
58.[问答题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/10/202010101602291387687006346.png" title="202010101602291387687006346.png" alt="图片.png"/>
<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/10/202010101602291517827036376.png" title="202010101602291517827036376.png" alt="图片.png"/>
A.
59.[问答题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/10/202010101602295740174035486.png" title="202010101602295740174035486.png" alt="图片.png"/>
<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/10/202010101602295809188006367.png" title="202010101602295809188006367.png" alt="图片.png"/>
A.
60.[问答题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/10/09/202010091602218975983018516.png" title="202010091602218975983018516.png" alt="图片.png"/>
A.
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