50厘米=0.5米
车轮滚动一周=3.14×0.5=1.57米
一辆车的车轮为50厘米,车轮滚动一周要几米?(结果保留2位小数) 50 50是直径
一辆车的车轮为50厘米,车轮滚动一周要几米?(结果保留2位小数) 50 50是直径
数学人气:479 ℃时间:2019-10-19 22:51:22
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