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受欢迎的 Word Problems >

The diameter of a circle is 9 m. Find its 周长 in terms of pipi.

解答

T h e d iam e t er o f a c i rc l e i s 9 m . F in d i t s c i rc u m f ere n ce in t er m s o f p iπ .

解答

c i rc u m f ere n ce : 9 π m

+1

十进制

28.27433 \dots

求解步骤

Given:

d iam e t er : 9 m

给定

d = 9

的圆周长:

C = 9 π

c i rc u m f ere n ce : 9 π m

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