数学 中学生 2年弱前 この問題の解き方と答えを教えてください！！ Problem 4 [5] Consider two concentric circles. If the radius of the smaller circle is r = 1 cm and the area of the smaller circle is exactly equal to the area between the two circles, find the radius R of the bigger circle. ous re R 解決済み 回答数: 1
数学 中学生 2年弱前 この問題の意味と解き方を教えてください！！ Problem 4 [5] Consider two concentric circles. If the radius of the smaller circle is r 1 cm and the area of the smaller circle is exactly equal to the area between the two circles, find the radius R of the bigger circle. [ R 未解決 回答数: 0
