边长分别为10、6、4的三个正方形拼接在一起,它们的底边在同一直线上(如图),则图中阴影部分的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/09f8adf6-bbd4-481b-9c4a-d3b1f685cd72.png?resizew=143)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/09f8adf6-bbd4-481b-9c4a-d3b1f685cd72.png?resizew=143)
A.15 | B.18 | C.21 | D.30 |
更新时间:2023-12-20 18:06:36
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】在
中,
,
,
.以A为圆心,
的长为半径作弧,分别交
于点M、N,再分别以M、N为圆心,适当长度为半径画弧,两弧交于点P.连接
,并延长
交
于D.过D作
于点E,垂足为E,则
的长度为()
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/44d7da4e-6065-41da-9ca0-00ab3f19a213.png?resizew=117)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb8e20db1fbb40f17dea52f951b907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9a415bdb7b4e1e35c18a9e53205392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68fbbd17c89f03dbb61cd6ffdb9a0344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/44d7da4e-6065-41da-9ca0-00ab3f19a213.png?resizew=117)
A.![]() | B.![]() | C.2 | D.1 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,在
中,
,
是
的中点,作
,垂足
在线段
上,连接
,
,则下列结论:①
;②
;③
;④
.其中结论正确的序号是( )
![](https://img.xkw.com/dksih/QBM/2021/5/10/2717946986487808/2793011741622272/STEM/2f1d6422-048a-40cc-9eb2-e3d94a7d11a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b929269c53a44907dba8ee298a0a522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f913298f0fae9f55377a8deab9f099dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5107e1da3751e42fa013c495ec361f6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34323137ddb894a70d97511aa5fe6f98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8f6c626960ab402c670a82d32682494.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0cf85915bdd25319de8f8b464bc59fd.png)
![](https://img.xkw.com/dksih/QBM/2021/5/10/2717946986487808/2793011741622272/STEM/2f1d6422-048a-40cc-9eb2-e3d94a7d11a9.png)
A.①② | B.②③④ | C.①②④ | D.①②③④ |
您最近一年使用:0次
单选题
|
适中
(0.65)
真题
名校
【推荐1】正方形
的边
上有一动点
,以
为边作矩形
,且边
过点
,在点
从点
移动到点
的过程中,矩形
的面积( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/6/9/4cd82ad5-5827-4268-8c34-c68742af40ca.png?resizew=127)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613d648ab11bb6336d31fa508fd7515b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613d648ab11bb6336d31fa508fd7515b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/6/9/4cd82ad5-5827-4268-8c34-c68742af40ca.png?resizew=127)
A.先变大后变小 | B.先变小后变大 | C.一直变大 | D.保持不变 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,正方形
中,
垂直于
,且
,
,则阴影部分的面积是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/2019/5/26/2211863784742912/2213459714097152/STEM/471febeb2fc94ed9965ff0777f347cad.png?resizew=113)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86338536656046e93b53672ade9a78b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7cbfaec1d9dcaaf159b060163436113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/2019/5/26/2211863784742912/2213459714097152/STEM/471febeb2fc94ed9965ff0777f347cad.png?resizew=113)
A.16 | B.18 | C.19 | D.21 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】如图,
为等腰直角三角形,
,点D为
上一点,点E为
延长线上一点,且
,连接
交
的延长线于点F,点G为
的中点,连接
.下列四个结论:①
;②
;③
;④
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/5/7bdfc4c9-4729-4158-9c82-68874331bb52.png?resizew=150)
其中正确的结论个数为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1d267eeb09c171c3e847f0597be31c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7d3e2cb19cba31f300e908a1f5bab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e6363330b33ca9feda927e6ffd3088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2c44163f10c81cf58d1cfe901bdcb5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090b2575658e8d143b4bcca5244b2e3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8897ba45f8c1e8d9ec4d3098a806521.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/5/7bdfc4c9-4729-4158-9c82-68874331bb52.png?resizew=150)
其中正确的结论个数为( ).
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
单选题
|
适中
(0.65)
真题
【推荐2】如图,在
中,对角线
,
相交于点O,点E为
的中点,
交
于点F.若
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e23b0785ba400d61178bddd714f61a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c197d8b99f2eb7477947e53461b5d548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
A.![]() | B.1 | C.![]() | D.2 |
您最近一年使用:0次