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受欢迎的 Word Problems >

The 周长 of a circular cloth is 14 feet. What is the area of a circular cloth.

解答

T h e c i rc u m f ere n ce o f a c i rc u l a r c l o t h i s 14 f ee t . Wha t i s t h e a re a o f a c i rc u l a r c l o t h .

解答

a re a : \frac{49}{π} f t^{2}

+1

十进制

15.59718 \dots

求解步骤

Given:

c i rc u m f ere n ce : 14 f t

给定

C i rc u m f ere n ce = 14

的圆半径:

r = \frac{7}{π}

给定

r = \frac{7}{π}

的圆面积:

A = \frac{49}{π}

a re a : \frac{49}{π} f t^{2}

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