如图所示,
是
的直径,
,
是
的两条弦,
于点M,
于点N,
.
的长;
(2)若点P为
上的动点,请确定点 P 的位置,使得
的值最小,并求出最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97a421b23550ee279df1f392419a347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab00e0cff0876c4183a47f1272cf9928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb3f043d5942f0c93ab7905d0338fb9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(2)若点P为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4688c035ef5b8b5cec798a378b2c6b.png)
23-24九年级上·江苏常州·期中 查看更多[3]
江苏省常州市溧阳市2023-2024学年九年级上学期期中数学试题(已下线)2024年中考数学考前综合模拟检测卷02(全国通用)-备战2024年中考数学真题题源解密(全国通用)(已下线)江苏省无锡市中考数学仿真预测卷-2024年中考数学【热点·重点·难点】专练(江苏专用)
更新时间:2023-11-09 09:59:37
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】如图,菱形
的对角线
与
交于点
,
于点
,交
于点
,
于点
.
![](https://img.xkw.com/dksih/QBM/2023/6/30/3270661286322176/3272948037861376/STEM/7745801fdd284b2b896c7f4ec4816207.png?resizew=181)
(1)判断四边形
的形状,并写出证明过程.
(2)若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14802763029ffe6b3891a1bbcd7ece29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2023/6/30/3270661286322176/3272948037861376/STEM/7745801fdd284b2b896c7f4ec4816207.png?resizew=181)
(1)判断四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f3c15b30bd155641e548a7d8c172dd4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7cbfaec1d9dcaaf159b060163436113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21b39558cdefc8db7f6b9adb326417c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,
为
的直径,点
在
上,延长
至点
,使
.延长
与
的另一个交点为
,连结
.
![](https://img.xkw.com/dksih/QBM/2023/2/21/3179602379890688/3180260171784192/STEM/59f0bdeaf84644dba4095117ed72f1b3.png?resizew=174)
(1)求证:
;
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/856ec5e63ddd1398e67eaebfa55044fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91795c572e9c413b376b6a1800336019.png)
![](https://img.xkw.com/dksih/QBM/2023/2/21/3179602379890688/3180260171784192/STEM/59f0bdeaf84644dba4095117ed72f1b3.png?resizew=174)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d32ac820e9ab572690649f16b87aa273.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f8a6ab5933f869b17a1c9cac7fab80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,在▱ABCD中,对角线AC与BD相交于点O,△ABO是等边三角形,AB=4,求BC的长.
![](https://img.xkw.com/dksih/QBM/2018/2/8/1877786952777728/1880247545839616/STEM/8b480976527f4eb69884563d3cffc828.png?resizew=105)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】如图,在观测点
测得小山上铁塔顶端
的仰角为
,铁塔底部
的仰角为
.已知塔高
,观察点
到地面的距离
,求小山
的高.(精确到
,
,
).
![](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/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe5ad8e993ca72050247b58ebe1d5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/489cca94b3320e16d3c0bf412bd13435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfaa19eeaf415ed419e77fe92794f443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52881be613aa404e553da30d8987cfad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47bb3f35e3db7c1f3a3dd3eb20151b5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/4/2b98a8ac-241c-43a2-beae-a1d7639f612b.png?resizew=178)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图,点A,B,C在圆O上,
,直线
,
,点O在
上.
是圆O的切线
(2)若
,求圆O的半径.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2ddd49625097d0a78df7170be4f882e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3f1d2807be6d574e04ca9c6e721b22.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
真题
【推荐2】如图,AB是⊙O的直径,C、P是
上两点,AB=13,AC=5,
(1)如图(1),若点P是
的中点,求PA的长;
(2)如图(2),若点P是
的中点,求PA得长 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
(1)如图(1),若点P是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
(2)如图(2),若点P是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://img.xkw.com/dksih/QBM/2014/6/30/1573734706831360/1573734713114624/STEM/b4032325edf34c8f853f2fd788272eb8.png?resizew=218)
您最近一年使用:0次