杂技演员表演独轮车走钢丝车轮的直径是40cm走完一段钢丝车轮滚动25圈这段钢丝长多少米
人气:363 ℃ 时间:2020-05-14 21:25:31
解答
40×3.14×25
=125.6×25
=3140(cm)
3140cm=31.4m
你看看对不对,不对再叫我.不对
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