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인기 있는 Word Problems >

The 원둘레 of a circle is 23pi cm. What is the area, in square centimeters? Express your answer in terms of pipi.

해법

T h e c i rc u m f ere n ce o f a c i rc l e i s 23 π c m . Wha t i s t h e a re a, in s q u a re ce n t im e t ers ? E x p ress yo u r an s w er in t er m s o f p iπ .

해법

a re a : 415.48 c m^{2}

솔루션 단계

Given:

c i rc u m f ere n ce : 23 π c m

주어진 원 반지름

C i rc u m f ere n ce = 23 π : r = 11.5

주어진 원 영역

r = 11.5 : A = 415.47562 \dots

a re a : 415.48 c m^{2}

인기 있는 예

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