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

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

汽车车车轮的半径为0.3米,它滚动1圈前进多少米?滚动1000圈前进多少米?
c=2pai*r
1圈等于2派*(0.3)=1.8849米
1000圈=1884.9米

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