1 . 如图,一只蚂蚁从A点出发,绕阴影部分一周,又回到A点.![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd2aa40eaf4a71c8e309bb45ea67ea99.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/723fdb15-4a0b-4080-9f77-155d8325f32e.png?resizew=143)
(1)算出小蚂蚁所走的路线长度.
(2)图中阴影部分的面积是多少平方厘米?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd2aa40eaf4a71c8e309bb45ea67ea99.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/723fdb15-4a0b-4080-9f77-155d8325f32e.png?resizew=143)
(1)算出小蚂蚁所走的路线长度.
(2)图中阴影部分的面积是多少平方厘米?
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2 . 如图,在△ABC中,AB=AC,M,N分别是AB,AC的中点,D,E为BC上的点,连接DN,EM.若AB=13cm,BC=10cm,DE=5cm,则图中阴影部分面积为( )cm2
![](https://img.xkw.com/dksih/QBM/2017/5/22/1692390525083648/1698847719120896/STEM/c45b6fa1-7668-4c99-8090-dba8860a8feb.png?resizew=144)
![](https://img.xkw.com/dksih/QBM/2017/5/22/1692390525083648/1698847719120896/STEM/c45b6fa1-7668-4c99-8090-dba8860a8feb.png?resizew=144)
A.25 | B.35 | C.30 | D.42 |
您最近一年使用:0次
2017-05-31更新
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225次组卷
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3卷引用:湖南省邵阳县2017届九年级5月优秀毕业生选拔考试数学试题