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受欢迎的 Word Problems >

The 周长 of a circle is 20𝜋 inches. What is the area?Give the exact answer in simplest form.

解答

T h e c i rc u m f ere n ce o f a c i rc l e i s 20​𝜋 in c h es . Wha t i s t h e a re a ? G i v e t h e e x a c t an s w er in s im pl es t f or m .

解答

a re a : 100 π in c h^{2}

+1

十进制

314.15926 \dots

求解步骤

Given:

c i rc u m f ere n ce : 20 π in c h

给定

C i rc u m f ere n ce = 20 π

的圆半径:

r = 10

给定

r = 10

的圆面积:

A = 100 π

a re a : 100 π in c h^{2}

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