如图,在四边形
中,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/6/558a3e31-483b-4a99-8f50-6ba737fbeaa8.png?resizew=145)
(1)求
的度数;
(2)求出四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b182e90c0a4718ebecf6a50ef96e7390.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/6/558a3e31-483b-4a99-8f50-6ba737fbeaa8.png?resizew=145)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
(2)求出四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
20-21八年级上·江苏扬州·期末 查看更多[10]
江苏省扬州市邗江区2020-2021学年八年级上学期期末数学试题(已下线)易错05 勾股定理与面积问题易错-2020-2021学年八年级数学下册期末突破易错挑战满分(人教版)安徽省合肥市第三十八中学2020-2021学年八年级下学期期中数学试题湖北省武汉市江汉区2020-2021学年八年级下学期期中数学试题江苏省镇江市丹徒区共同体2021-2022学年八年级上学期12月月考数学试题安徽省蚌埠第一实验学校2022-2023学年八年级下学期期中数学质量检测湖北省随州市2022-2023学年八年级下学期期中数学试题安徽省亳州市蒙城县庄子中学2022-2023学年八年级下学期期中数学试题安徽省蚌埠市怀远县新城实验学校2022-2023学年八年级下学期期中数学试题江苏省扬州市邗江区邗江区实验学校2023年八年级上学期第二次月考数学试题
更新时间:2023-04-05 10:26:27
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解答题-问答题
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适中
(0.65)
【推荐1】将△ABC绕点C旋转180°得到△FEC.
(1)试猜想AE与BF有何关系?说明理由.
(2)若△ABC的面积为3cm2,求四边形ABFE的面积.
(1)试猜想AE与BF有何关系?说明理由.
(2)若△ABC的面积为3cm2,求四边形ABFE的面积.
![](https://img.xkw.com/dksih/QBM/2020/3/31/2431323436654592/2434399211003904/STEM/fcb5e44f15c0402fa9c503ed6d6d0901.png?resizew=175)
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解答题-作图题
|
适中
(0.65)
【推荐2】仔细看图,活学活用.
(1)画出三角形
的
边上的高
.
(2)根据图中提供的信息,不用测量任何数据,画一个与三角形
面积相等的三角形![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(3)应用:在如图所示的梯形中,三角形
与三角形
的面积分别是4平方厘米和9平方厘米.梯形的面积是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/12/bab90b95-81af-4e84-9aaf-d04121f0db22.png?resizew=279)
(1)画出三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)根据图中提供的信息,不用测量任何数据,画一个与三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(3)应用:在如图所示的梯形中,三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc83f34b5a3c1dc09d990ce4bdc8e078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fbb5d97a06c189af2032a1b551ca0ff.png)
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解答题-问答题
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适中
(0.65)
名校
【推荐1】在
中,
,
为锐角且
,
.
![](https://img.xkw.com/dksih/QBM/2022/11/20/3113581170188288/3114597431910400/STEM/a9874fcfba6548009006930cd4d57413.png?resizew=119)
(1)求
的度数.
(2)求
的长.
(3)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a466ddbea77824fee933e881fc1ed5f4.png)
![](https://img.xkw.com/dksih/QBM/2022/11/20/3113581170188288/3114597431910400/STEM/a9874fcfba6548009006930cd4d57413.png?resizew=119)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解答题-问答题
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适中
(0.65)
名校
【推荐2】如图,矩形
中,
,M是边
上一点,将
沿直线
翻折,得到
.
![](https://img.xkw.com/dksih/QBM/2021/12/8/2868073222782976/2870125713883136/STEM/b77ab0c8-9630-4c68-946f-6394933e325f.png?resizew=251)
![](https://img.xkw.com/dksih/QBM/2021/12/8/2868073222782976/2870125713883136/STEM/1280487e-f47d-43af-a99d-6d69aab0629e.png?resizew=238)
![](https://img.xkw.com/dksih/QBM/2021/12/8/2868073222782976/2870125713883136/STEM/01183251-f7c4-4d91-89a9-c371124ef9fb.png?resizew=245)
(1)如图1,当
平分
时,求
的长.
(2)如图2,当M是
的中点时,连接
,则
的值;
(3)连接
,当
时,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20ef58c7d76b981cc93ee42d80c582c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f9fba8a4098c1a0515286eb8d616dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246b32e19ae21b0cd1f826c47f517ca0.png)
![](https://img.xkw.com/dksih/QBM/2021/12/8/2868073222782976/2870125713883136/STEM/b77ab0c8-9630-4c68-946f-6394933e325f.png?resizew=251)
![](https://img.xkw.com/dksih/QBM/2021/12/8/2868073222782976/2870125713883136/STEM/1280487e-f47d-43af-a99d-6d69aab0629e.png?resizew=238)
![](https://img.xkw.com/dksih/QBM/2021/12/8/2868073222782976/2870125713883136/STEM/01183251-f7c4-4d91-89a9-c371124ef9fb.png?resizew=245)
(1)如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df92344b00e2aa8e7f0d1fa997b9dd04.png)
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(2)如图2,当M是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32aa6754d96052d57b86cb041b0fcfc0.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e46902c589b964c055aee819dc3e4ad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7ad41b36674fd6e90176ee24cdefbb.png)
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解答题-证明题
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适中
(0.65)
名校
【推荐1】在
中,
,点
为
内一点,连接
,
,延长
到点
,使得
.
(1)如图
,延长
到点
,使得
,连接
,
求证:
;
(2)如图
,连接
,
的延长线交
于点
,若
,判断
与
的位置关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1d267eeb09c171c3e847f0597be31c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/3/ba824505-7cec-4644-91ea-dc67293d764a.png?resizew=434)
(1)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d197ea8c1c8bbdf5edade431388eb713.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55d8251f47a745e613124187e131275f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4155b9782cadf9e5f614d98b370d556b.png)
(2)如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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解答题-问答题
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适中
(0.65)
【推荐2】如图,折叠长方形纸片ABCD的一边AD,使点D落在BC边的点F处,已知
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/4/aae18082-c72a-4379-9ad9-99fff58459c6.png?resizew=151)
(1)求线段BF的长;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/4/aae18082-c72a-4379-9ad9-99fff58459c6.png?resizew=151)
(1)求线段BF的长;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
您最近一年使用:0次