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인기 있는 Word Problems >

The 원둘레 of a circle is 20𝜋 kilometers. What is the radius?

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 ki l o m e t ers . Wha t i s t h e r a d i u s ?

해법

r a d i u s : 10 km

솔루션 단계

Given:

c i rc u m f ere n ce : 20 π km

주어진 원 반지름

C i rc u m f ere n ce = 20 π : r = 10

r a d i u s : 10 km

인기 있는 예

9 less than half a number The 원둘레 of a circle is 3𝜋 kilometers. What is the area?The radius of a 원형 is 5 in. Find its area in terms of Deon deposited 4000 into an account with 4.7% interest, compounded annually. Assuming that no withdrawals are made, how much will he have in the account after 5 years?18 more than a number is 2