如图,在
中,
,
,
,分别以
的三边为边,向部作正方形
,
,
,直线
与
相交于点J,过G作
的平行线与线
相交于点M,过F作
的平行线与直线
相交于点K,直线
与
相交于L,则四边形
的面积是 _____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d70676406f26d339465fe3473c0c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c35e7a990d8ff3e55945fd4718a9740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/616b46476c1f1d22e3a21d6fa33a3400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc29330979e64e99678423e58759779.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc29330979e64e99678423e58759779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc29330979e64e99678423e58759779.png)
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22-23八年级下·山东淄博·期中 查看更多[3]
山东省淄博市周村区2022-2023学年八年级下学期期中数学试题(已下线)专题02勾股定理 全章热门考点专练(考点清单,2个概念2个定理3种方法2个应用专练)-2023-2024学年八年级数学下学期期中考点大串讲(人教版)2024年四川省德阳市广汉市中考二模数学试题
更新时间:2024-03-25 19:17:02
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【知识点】 以直角三角形三边为边长的图形面积
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【推荐1】如图是由“赵爽弦图”变化得到的,它由八个全等的直角三角形拼接而成,记图中正方形ABCD,正方形EFGH,正方形MNKT的面积分别为
,若
,则
的值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf4e20ea341827ce5f9552daee39462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75788925675b33417105885c471c0d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://img.xkw.com/dksih/QBM/2019/2/12/2139081497763840/2142166860365825/STEM/1c7e48a9b1894aafae886ab4c9699ab7.png?resizew=125)
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【推荐2】张老师和“数学小分队”的队员们在学习数学史时,发现了一个著名的“希波克拉蒂月牙问题(
)”:如图在
中,
,
,
,分别以
的各边为直径作半圆,则图中两个“月牙”即阴影部分面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc75c4a4df36f0abbc01ee619c409b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
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