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인기 있는 Word Problems >

The area of a circle is 81𝜋 square centimeters. What is the 지름?

해법

T h e a re a o f a c i rc l e i s 81​𝜋 s q u a re ce n t im e t ers . Wha t i s t h e d iam e t er ?

해법

d iam e t er : 18 c m

솔루션 단계

Given:

a re a : 81 π c m^{2}

주어진 원 반지름

A re a = 81 π : r = 9

주어진 원 지름

r = 9 : d = 18

d iam e t er : 18 c m

인기 있는 예

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