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受欢迎的 Word Problems >

the diameter of a circle is 20in. Find the 周长 to the nearest tenth

解答

t h e d iam e t er o f a c i rc l e i s 20 in . F in d t h e c i rc u m f ere n ce t o t h e n e a res t t e n t h

解答

c i rc u m f ere n ce : 20 π in

+1

十进制

62.83185 \dots

求解步骤

Given:

d iam e t er : 20 in

给定

d = 20

的圆周长:

C = 20 π

c i rc u m f ere n ce : 20 π in

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