如图,小亮从A点出发前进10m,向右转30°,再前进10m,又向右转30°这样一直走下去,他第一次回到出发点A时,一共走了( )
![](https://img.xkw.com/dksih/QBM/2019/11/11/2338795068407808/2348654393204737/STEM/bc5436c126f543f58c1a79d435f1c2ff.png?resizew=228)
![](https://img.xkw.com/dksih/QBM/2019/11/11/2338795068407808/2348654393204737/STEM/bc5436c126f543f58c1a79d435f1c2ff.png?resizew=228)
A.200m | B.120m | C.240m | D.260m |
更新时间:2019-12-06 07:41:49
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【推荐1】如图,奇奇先从点
出发前进
,向右转
,再前进
,又向右转
,…,这样一直走下去,他第一次回到出发点
时,一共走了( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/9/9875ba0b-e059-4dc9-a4bc-1be727e97080.png?resizew=213)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,小林从P点向西直走12m后,向左转,转动的角度为α,再走12m,如此重复,小林共走了108m回到点P,则α=( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/a07c08d3-05f4-4c57-9b2c-b47b0b22ae29.png?resizew=119)
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A.40 o | B.50 o | C.80 o | D.不存在 |
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【推荐1】如图,五边形
中,
,
分别是
的外角,则
( )
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A.90° | B.180° | C.120° | D.270° |
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【推荐2】如图,小明沿着一笔直道路行走前进6米后右转
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A.144米 | B.108米 | C.72米 | D.120米 |
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