如图所示的正方形瓷砖是由8个全等的三角形和8个全等的筝形拼成的.已知该瓷砖的边长为100cm,则1个三角形的面积为________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ce13774b09ff2edddaf21a072cf60a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/10/54d67207-bf33-4167-9d76-4ff14fc9f4de.png?resizew=118)
更新时间:2022-06-07 14:49:25
|
相似题推荐
填空题
|
适中
(0.65)
【推荐1】如图,在等腰直角三角形ACB中,
,O是斜边AB的中点,点D,E分别在直角边AC,BC上,且
,DE交OC于点P,有下列结论:①图形中全等的三角形只有两对;②△ABC的面积等于四边形CDOE的面积的2倍;③
;④
.其中正确的结论有____________ .(填序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95a92fcd0cd5e55f1d32d42504a5690.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451fd7d7729bec229af12cc5787758ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb8741a132b47bba3a4ce38e27f1fc79.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/21/dccaa475-32b5-4620-b46f-2d04b1a3cc22.png?resizew=236)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】在边长为
的正方形OABC中,D为边BC上一点,且CD=1,以O为圆心,OD为半径作圆,分别与OA、OC的延长线交于点E、F,则阴影部分的面积为__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/47c69def-dbc5-4b64-86d5-cd5363b771d3.png?resizew=184)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐1】如图,在正方形ABCD中,P为对角线BD上一点,MN为正方形GHMN的一边,若正方形AEOF的面积为18,则三角形PMN的面积是______ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/22/001f0b28-d2e7-4d99-b2c2-30828aa48704.png?resizew=156)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】如图,点E是正方形
内一点,且
,
,若
,则正方形
的面积是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1364213f546b37f8764ddcb59e36ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dae03ea239405994d1b6f20d15a36f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba719217771ea0001b180d1c03cfa0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/11/2a359549-b576-4af8-8256-f88299a4be38.png?resizew=153)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐1】正方形
的边长为4,点
在对角线
上(可与点
重合),
,点
在正方形的边上.下面四个结论中,
①存在无数个四边形
是平行四边形;
②存在无数个四边形
是菱形;
③存在无数个四边形
是矩形;
④至少存在一个四边形
是正方形.
所有正确结论的序号是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e5c289b8aabdbfba95c7fd1e1842f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
①存在无数个四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99393efa04579f3db5cf4f7e319f0440.png)
②存在无数个四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99393efa04579f3db5cf4f7e319f0440.png)
③存在无数个四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99393efa04579f3db5cf4f7e319f0440.png)
④至少存在一个四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99393efa04579f3db5cf4f7e319f0440.png)
所有正确结论的序号是
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐2】如图,在平面直角坐标系
中,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/15/6bd6c9e5-febf-48d0-8c69-56c10325a392.png?resizew=213)
①当
时,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b597aeff6b39745d60ed5102dd587b8.png)
_________ ;
②在图中的网格区域内找一点
,使
,且四边形
被过
点的一条直线分割成两部分后,可以拼成一个正方形,则
点坐标为_________ (要求:写出点
坐标,画出过
点的分割线并指出分割线,不必说明理由,不写画法)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/753bb8760941bfb1d526f69a100e4857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a7a9671903e76ef69a3bf97976c4d8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/15/6bd6c9e5-febf-48d0-8c69-56c10325a392.png?resizew=213)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa6e8a3361f6c2e894ed7dda58b5dc60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b597aeff6b39745d60ed5102dd587b8.png)
②在图中的网格区域内找一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17e8dd565c0aa20bd7eda5c6b7e4642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e311b2e11784551cf8d0a4a70161887d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次