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인기 있는 Word Problems >

The 원둘레 of a circle is 20pi in. What is the area, in square inches?

해법

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 . Wha t i s t h e a re a, in s q u a re in c h es ?

해법

a re a : 100 π i n^{2}

+1

소수

314.15926 \dots

솔루션 단계

Given:

c i rc u m f ere n ce : 20 π in

주어진 원 반지름

C i rc u m f ere n ce = 20 π : r = 10

주어진 원 영역

r = 10 : A = 100 π

a re a : 100 π i n^{2}

인기 있는 예

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