过△ABC的重心G作GE∥BC交AC于点E,线段BC=12,线段GE长为( )
A.4 | B.4.5 | C.6 | D.8 |
更新时间:2020-03-16 13:11:49
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单选题
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适中
(0.65)
【推荐1】如图,在
中,
为
边的中点,
为
边的中点,连接
,
交于点
.
,则四边形
的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/698da450-c6ce-4687-82c2-d92621f6ff47.jpg?resizew=138)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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A.3 | B.5 | C.6 | D.4.5 |
您最近一年使用:0次
单选题
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适中
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【推荐2】如图,
是平行四边形
边
中点,
与
交于点
,连接
,已知
,
,
.下列命题:①点
是
的重心;②
与
相似;③
;④平行四边形
的面积为
.其中正确的命题为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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A.①② | B.②③ | C.③④ | D.①④ |
您最近一年使用:0次
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【推荐1】如图,四边形
是平行四边形,
,若
,则四边形
的面积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/903f9fd0f50a78f0c3da6ecf7fef9070.png)
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A.5 | B.7 | C.9 | D.11 |
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真题
【推荐2】如图,在矩形
中,P是边
上的一个动点,连接
,
,过点B作射线,交线段
的延长线于点E,交边
于点M,且使得
,如果
,
,
,
,其中
.则下列结论中,正确的个数为( )
(1)y与x的关系式为
;(2)当
时,
;(3)当
时,
.
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(1)y与x的关系式为
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A.0个 | B.1个 | C.2个 | D.3个 |
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