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数学 中学生

この問題全部が謎すぎて分かりません😅 教えてくださいお願いします🙇‍♀️

most popular ets in our tleds we woy ob ( [3] 点○を中心とする円を円○とする。円○の外側に接する円を,円○をちょうど一周するよう にいくつかかく。ただし、 外側の円は互いに接しており, 半径がすべて等しい。 例えば,図1は8 個,図2は23個の場合である。 このとき、 次の各問いに答えよ。) ode is v V kozuod gid yox mi() so odT (s) H Ken >DES 7 \Yqoua Ryota J Cinly Owls Ottom 自衛白書a エ目番8⑤ 目書 86 目書 ② bornnelcinit leintaine offiapittle sitibduodarealondar \ Instroquias Tolens sbobines Norte Nighindand otheqer / 図1 There is only oneditierence. 図2 "By the way, was e out (1) 問題の条件を満たすように,円Oの外側に半径rの円を4つかく。円〇の半径が2-1の とき、円Oの外側にかいた円の半径r を求めよ。 D (2) 問題の条件を満たすように,円Oの外側に円Oと半径の等しい円をいくつかかく。 このとき、 円Oの外側にはいくつの円がかけるか E (3) 円○および円Oの外側のすべての円の面積と,円Oの外側の円を すきま かくときに生じるすべての隙間の面積の和 (図3のようにかげ ■」 をつけた部分の面積の和) をSとする。 (2)の場合で, 円 の半径が1のときのSを求めよ。 F 図3

解決済み 回答数: 1
英語 中学生

問2の解説を詳しくお願いします。

次の英文は、裕太(Yuta)が書いたものである。これを読んで、後の各問に答えよ。 "So, let's continue making an introduction about your fathers," said our English teacher, Mrs. Yashima one month ago. This class was Dmind-numbing, and I was thinking of the way to kill the time during the class. 4 I didn't know much about my father He was always busy working, so I didn't have any memories of playing with him at all. He came home late at night, woke up earlier than me, and left for his workplace without having breakfast. On weekends, he was always watching news programs which never interested me. When I looked out of the window, a friend of mine who was living near my home was playing catch with his father, and I projected myself on him. When we were having dinner, he never asked me any nice question. He always said to me, "How are the school and the club going?" I only said, "Not bad," because I thought that he had no interest in my school life or club activity. I didn't know about my father well, but I remember the other face of him. He sometimes repaired things in our home such as the TV set, chair, or bicycle. I wasn't interested in it at all until a neighbor told me a story about my father. She always took care of me when my parents were busy. "Your father is a good person," she said. "He always repairs broken things with a smile. It was just like magic." And she gave me some cookies. I knew about my father a little. The other day, I visited a factory as a part of social study class, and a man spoke to me, "Oh, your last name is..., are you his son? When I was working for another company with him, he took good care of me. He sometimes scolded me, but taught me a lot of things. So, I respect him so much." I knew about my father well. When I told my father about the man, he said to me, "Keep the friendship all the time. If you give a hand to someone, the person will give you a hand back someday. Just remember it." At that time, I understood that my father was a hard worker and he was respected by many people. Though he was a serious and silent person, I felt I knew him for the first time. 2022(R4) LAMANG

未解決 回答数: 1