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인기 있는 Word Problems >

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

해법

T h e a re a o f a c i rc l e i s 49​𝜋 s q u a re ce n t im e t ers . Wha t i s t h e c i rc u m f ere n ce ?

해법

c i rc u m f ere n ce : 14 π c m

+1

소수

43.98229 \dots

솔루션 단계

Given:

a re a : 49 π c 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 c m

인기 있는 예

Use a geometric formula to solve the problem.A 원형 has an area of 36pi square inches. Find the radius.The 원둘레 of a circle is 14𝜋 kilometers. What is the diameter?two more than the product of a number and 5 equals 8 five times a number increased by 8 is 32. Find the number The 지름 of a circle is 5 meters. What is the area?