如图,四边形
为平行四边形,经过
,
,
三点的
交
于点
,连接
,若
,则
( )
![](https://img.xkw.com/dksih/QBM/2020/2/11/2396547360792576/2396930278113280/STEM/e3474dd2131d4367883805778cc4f807.png?resizew=197)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e1473622cb0926e381e0ead4085b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4af17b55fa474f0103a858c2604b093.png)
![](https://img.xkw.com/dksih/QBM/2020/2/11/2396547360792576/2396930278113280/STEM/e3474dd2131d4367883805778cc4f807.png?resizew=197)
A.![]() | B.![]() | C.![]() | D.![]() |
2019·山东烟台·一模 查看更多[1]
(已下线)【万唯】山东省烟台市2018-2019学年中考数学模拟试题(黑卷)
更新时间:2020-02-14 16:58:06
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【推荐1】如图,将平行四边形
绕点A顺时针旋转,其中B、C、D分别落在点E、F、G处,且点B、E、D、F在同一直线上,若
,则
的大小为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/c141ce35-472c-49aa-98b8-f921e8a2e71e.png?resizew=149)
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A.65° | B.55° | C.50° | D.40° |
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【推荐2】如图,在
中,点D,E,F分别在边
,
,
上,连接
,
,已知四边形
是平行四边形,
,若
的面积为1,则平行四边形
的面积为( )
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A.6 | B.9 | C.12 | D.18 |
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【推荐1】如图,已知AB是半圆⊙O的直径,∠DAC=27°,D是弧AC的中点,那么∠BAC的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/72913570-e7c3-4f1b-9d9b-f4443d7debea.png?resizew=159)
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A.46° | B.36° | C.29° | D.32° |
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【推荐2】如图AB是⊙O的直径,点C、D、E在⊙O上,∠AEC=25°,∠BDC=( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/26/9ebf9c4b-d451-4492-a151-b0b8785f8b2c.png?resizew=136)
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A.100° | B.110° | C.120° | D.115° |
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