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受欢迎的 Word Problems >

The area of a circle is 16pi square inches. What is the 周长?Give the exact answer in simplest form.

解答

T h e a re a o f a c i rc l e i s 16​ π s q u a re in c h es . Wha t i s t h e c i rc u m f ere n ce ? 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

c i rc u m f ere n ce : 8 π in c h

+1

十进制

25.13274 \dots

求解步骤

Given:

a re a : 16 π in c h^{2}

给定

A re a = 16 π

的圆半径:

r = 4

给定

r = 4

的圆周长:

C = 8 π

c i rc u m f ere n ce : 8 π in c h

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