江苏苏州市昆山市2026-2027学年九年级上学期期中考试数学试题

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初三数学试卷

2026.11

(满分130分,时间120分钟)

一、选择题:本大题共8小题,每小题3分,共24分.在每小题给出的四个选项中,只有一个是符合题目要求的,请将答案涂在答题卷相对应的位置上.

1.下列四个点.其中在反比例函数的图象上的点是

A. B. C. D.

2.已知的半径为,线段,那么点与的位置关系是

A.点在圆外 B.点在圆上 C.点在圆内 D.不能确定

3.已知一组数据8,9,10,12,的中位数是10,则的值可以是

A.7 B.8 C.9 D.11

4.已知点,,都在反比例函数的图象上,则,,的大小关系是

A. B. C. D.

5.如图,在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中,,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,以为直径的交于点,交于点,则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的长为

A. B. C. D.

6.有一组被墨水污染的数据:4,11,7,4,■,■,■,9,其箱线图如图所示,则被墨水污染的数据是page number 0

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A.3,4,10 B.4,8,12 C.3,10,12 D.3,9,12

7.如图,是的半径,是的弦,,过点作的切线,交的延长线于点.若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,,则弦的长为

A. B. C. D.

8.如图,在平面直角坐标系中,,分别是横、纵轴正半轴上的动点,四边形是矩形、函数的图象与边交于点,与边交于点(,不重合).连接,,,.则下面结论错误的是page number 1

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A.与的长可能相等 B.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可能是钝角三角形

C.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与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的面积一定相等 D.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与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的面积可能相等

二、填空题:本大题共8题,每小题3分,共24分,把答案直接填在答题卷相应的位置上.

9.已知一组数据:2,3,3,5,2,2,这组数据的众数是     ▲     .

10.如图,点是反比例函数的图象上一点,过点分别向轴、轴作垂线段,所构成的矩形(阴影部分)面积为5,则的值为     ▲     .

11.如图,在中,,eqWmf183GmgAAAAAAAAAIAAIBCQAAAAAQVAEACQAAA+cBAAACAKkAAAAAAAUAAAACAQEAAAAFAAAAAQL///8ABQAAAC4BGQAAAAUAAAALAgAAAAAFAAAADAIAAgAICwAAACYGDwAMAE1hdGhUeXBlAAAwABIAAAAmBg8AGgD/////AAAQAAAAwP///7f////ABwAAtwEAAAUAAAAJAgAAAAIFAAAAFAKgAeYFHAAAAPsCgP4AAAAAAACQAQAAAAAAAgAQVGltZXMgTmV3IFJvbWFuAP7///8oyg8DfEPwdEAAAAAEAAAALQEAAAoAAAAyCgAAAAACAAAANTjAAAADBQAAABQCoAFaARwAAAD7AoD+AAAAAAAAkAEBAAAAAAIAEFRpbWVzIE5ldyBSb21hbgD+////KMoPA3xD8HRAAAAABAAAAC0BAQAEAAAA8AEAAAwAAAAyCgAAAAADAAAAQU9D6OoAFAEAAwUAAAAUAqABNAAcAAAA+wKA/gAAAAAAAJABAAAAAQACABBTeW1ib2wA6wAACgAIJLAQ/v///yjKDwN8Q/B0QAAAAAQAAAAtAQAABAAAAPABAQAKAAAAMgoAAAAAAgAAANA9kgQAAwUAAAAUAvQAYgccAAAA+wIg/wAAAAAAAJABAAAAAQACABBNVCBFeHRyYQAACgBII7AQ/v///yjKDwN8Q/B0QAAAAAQAAAAtAQEABAAAAPABAAAJAAAAMgoAAAAAAQAAAG8AwAGpAAAAJgYPAEgBQXBwc01GQ0MBACEBAAAhAQAARGVzaWduIFNjaWVuY2UsIEluYy4ABQEABwhEU01UNwABE1dpbkFsbEJhc2ljQ29kZVBhZ2VzABEFVGltZXMgTmV3IFJvbWFuABEDU3ltYm9sABEFQ291cmllciBOZXcAEQRNVCBFeHRyYQATV2luQWxsQ29kZVBhZ2VzABEGy87M5QASAAghLyfyXyGPIS9HX0FQ8h8eQVD0FQ9BAPRF9CX0j0JfQQD0EA9DX0EA8h8gpfIKJfSPIfQQD0EA9A9I9Bf0j0EA8hpfRF9F9F9F9F9BDwwBAAEAAQICAgIAAgABAQEAAwABAAQABQAKAQAQAAAAAAAAAA8BAgSGICLQAgCDQQACAINPAAIAg0MAAgSGPQA9AgCINQACAIg4AA8AAwAcAAALAQEBAA8BAgSLGCJvAAAAAAoAAAAmBg8ACgD/////AQAAAAAAHAAAAPsCEAAHAAAAAAC8AgAAAIYBAgIiU3lzdGVtAAb6AYoKAAAKAH0gZgZ9IGYG+gGKCiDUDwMEAAAALQEAAAQAAADwAQEAAwAAAAAA,是优弧上一点,连接,,则的度数为     ▲     .page number 2

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