해법
해법
솔루션 단계
Given:
주어진 원 반지름
주어진 원 둘레
인기 있는 예
Tom is going for a walk. He walks 6.4 miles in 4 hours. what is his speed?seven times the 차이 of a number and 4 is no more than 10two numbers are in ratio 1:1 and their sum is 15. Find the numbersAndrew is 6 years older than twice Maddy's age. If the sum of their ages is 78, how old is Maddy?10 is 20% of what number?:[?]