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인기 있는 >

The area of a circle is 49𝜋 square meters. What is the 원둘레?

해법

The area of a circle is 49𝜋 square meters. What is the circumference?

해법

c i rc u m f ere n ce : 14 π m

+1

십진법

43.98229 \dots

솔루션 단계

Given:

a re a : 49 π m^{2}

주어진 원 반지름

A re a = 49 π : r = 7

주어진 원 둘레

r = 7 : C = 14 π

c i rc u m f ere n ce : 14 π m

인기 있는 예

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