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인기 있는 Word Problems >

circle has an area of 20ft^2 What is the 원둘레 of the circle (Round to 3 decimal places)?

해법

c i rc l e ha s an a re a o f 20 f t^{2} Wha t i s t h e c i rc u m f ere n ce o f t h e c i rc l e (R o u n d t o 3 d ec ima l pl a ces) ?

해법

c i rc u m f ere n ce : 45 π f t

+1

소수

15.85330 \dots

솔루션 단계

Given:

a re a : 20 f t^{2}

주어진 원 반지름

A re a = 20 : r = \frac{2 5}{π}

주어진 원 둘레

r = \frac{2 5}{π} : C = 45 π

c i rc u m f ere n ce : 45 π f t

인기 있는 예

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