13-14高二下·天津红桥·期末
1 . 如图,在梯形
中,
,若
,
,
,则梯形
与梯形
的面积比是
![](https://img.xkw.com/dksih/QBM/2017/7/19/1733338968555520/1734026604691456/STEM/9b8ccbee6b0a4a5a8b536a3465d95d8c.png?resizew=114)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10de2459bc376f9a3de90f74cc18ca7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613dedf2d90e58591b7ac4a250ac7b5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369eb8ad56da7dc1cdb7c43762be4bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6240d4cf0fb44aa1e6bdaf2a4bdfb37e.png)
![](https://img.xkw.com/dksih/QBM/2017/7/19/1733338968555520/1734026604691456/STEM/9b8ccbee6b0a4a5a8b536a3465d95d8c.png?resizew=114)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 如图,
是⊙
的直径,
是弦,
的平分线
交⊙
于点
,
,交
的延长线于点
,
于点
,且
,
.在上述条件下,给出下列四个结论:①
;②
;③
;④
,则所有正确结论的序号是
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/40635dc1b2604642973861c77bec8d10.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/8bf08d3d2ff04ef7aef0340295b3d24a.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/c33e38cc9b2f4bbaaab64f951be7fb8a.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/bd61053a442246b8a9086797c4b70207.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/c667b30a8ffd42e0b19f12f8618df84e.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/fdf87f0713b5483e8a522a430d8b63a4.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/c33e38cc9b2f4bbaaab64f951be7fb8a.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/aed21a018dfc4fcd9be453141b576818.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/49a703a9467d49ca99ce9cece0afea44.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/bd61053a442246b8a9086797c4b70207.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/f5e534592a264505b51564c31c90b6e6.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/d1b16a0103214939b3544992ed950b10.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/353df585f85843cbbe82c5c74e8bd77f.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/5297c6673c15499fb50ea36cb67f9605.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/ff99e92ba9d9443b8899f13b4efdc1bd.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/54c0b01c3d2147948c39132e1c0aab40.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/d2d74b3421494a8b890247194e2ef715.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/f4df0f9053cb4bb6a16b33ac8b004c5e.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/f76e40feeefa431d85918a37072decb6.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930515456/STEM/40635dc1b2604642973861c77bec8d10.png)
A.①②③ | B.②③④ | C.①③④ | D.①②④ |
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