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受欢迎的 Word Problems >

The 周长 of a circle is 10𝜋 feet. What is the area?

解答

T h e c i rc u m f ere n ce o f a c i rc l e i s 10​𝜋 f ee t . Wha t i s t h e a re a ?

解答

a re a : 25 π f t^{2}

+1

十进制

78.53981 \dots

求解步骤

Given:

c i rc u m f ere n ce : 10 π f t

给定

C i rc u m f ere n ce = 10 π

的圆半径:

r = 5

给定

r = 5

的圆面积:

A = 25 π

a re a : 25 π f t^{2}

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