上海教育出版社六年级第一学期(试用本)数学练习部分P49-50答案4.1

2024-12-04 23:10:29
推荐回答(3个)
回答1:

1.38厘米 2.50圈 3。直径25米 半径12.5米 4。直径2厘米 5。同时回到A点

回答2:

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回答3:

3.14*2