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受欢迎的 Word Problems >

The radius of a circle is 19 cm. Find its 周长 in terms of pipi.v

解答

T h e r a d i u s o f a c i rc l e i s 19 c 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 . v

解答

c i rc u m f ere n ce : 38 π c m

+1

十进制

119.38052 \dots

求解步骤

Given:

r a d i u s : 19 c m

给定

r = 19

的圆周长:

C = 38 π

c i rc u m f ere n ce : 38 π c m

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