3.14×10×2×3
=3.14×60
=188.4厘米
鐘表的分針長10厘米,時(shí)針長6厘米.分針從3到6針尖走過了多少厘米
鐘表的分針長10厘米,時(shí)針長6厘米.分針從3到6針尖走過了多少厘米
數(shù)學(xué)人氣：947 ℃時(shí)間：2020-04-30 19:15:11
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