汽车车轮的半径为0.3m,它滚动1圈前进多少米?滚动1000圈呢,前进多少米

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汽车车轮的半径为0.3m,它滚动1圈前进多少米?滚动1000圈呢,前进多少米

汽车车轮的半径为0.3m,它滚动1圈前进多少米?滚动1000圈呢,前进多少米
汽车车轮的半径为0.3m,它滚动1圈前进多少米?滚动1000圈呢,前进多少米

汽车车轮的半径为0.3m,它滚动1圈前进多少米?滚动1000圈呢,前进多少米
滚动一圈也就是经过一个周长的距离:2πr=2×3.14×0.3=1.884m
滚动1000圈,前进:1.884×1000=1884m

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