해법
해법
솔루션 단계
Given:
주어진 원 반지름
주어진 원 영역
인기 있는 예
kevin is 3 times as old a daniel . 4 years ago, kevin was 5 times as old as daniel . how old is kevin now ?11 plus a number is 20The area of a circle is 81𝜋 square centimeters. What is the 지름?Lauren's age is half of Joe's age. Emma is ten years older than Joe. The sum of Lauren, Emma, and Joe's age is 54. How old is Joe?my dog is like 20 years old, how old is my dolphin