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230问答网 > 一辆自行车的外轮半径是40厘米,它通过一条1256米长的街道时,车轮需要转多少圈

一辆自行车的外轮半径是40厘米,它通过一条1256米长的街道时,车轮需要转多少圈

算式

2025-04-07 02:28:51

推荐回答（3个）

回答1：

周长是3.14×40÷100=1.256米
所以要1256÷1.256=1000圈

回答2：

500圈是对的。1000圈那是直径40cm的儿童玩具车把

回答3：

40厘米=0.4米

需要=1256÷(0.4×2×3.14)=500圈

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