一个车轮的半径为0.3米,那么它滚动1000圈前进多少米?还有列式)
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/05 07:14:42
一个车轮的半径为0.3米,那么它滚动1000圈前进多少米?还有列式)
![一个车轮的半径为0.3米,那么它滚动1000圈前进多少米?还有列式)](/uploads/image/z/5945194-10-4.jpg?t=%E4%B8%80%E4%B8%AA%E8%BD%A6%E8%BD%AE%E7%9A%84%E5%8D%8A%E5%BE%84%E4%B8%BA0.3%E7%B1%B3%2C%E9%82%A3%E4%B9%88%E5%AE%83%E6%BB%9A%E5%8A%A81000%E5%9C%88%E5%89%8D%E8%BF%9B%E5%A4%9A%E5%B0%91%E7%B1%B3%3F%E8%BF%98%E6%9C%89%E5%88%97%E5%BC%8F%EF%BC%89)
前进了1884.9556米,0.3x2=o.6米(直径)0.6x3.1415926=1.8849556米(周长)1.8849556x1000=1884.9556米.3.1415926是圆周率,直径乘上圆周率等于周长.
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