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数学 中学生

(2)の①の問題の解き方が回答を見てもいまいちよく分かりません。簡単な説明で教えてください。

沖縄 7 -39 平方根 1,70 愛知 69 る。 福島 数になる。 7である。 7 (神奈川) さい正の整数 かどうかを調 -51-8/19 .7になる場 4 右の図1は、面積が acmの正方形ABCD と、面積が6cm²の正 方形ECFG を,3点B, C, F が一直線上にな るように並べたものである。 α<b として,次 の問いに答えなさい。 (1) 線分BFの長さを, a, bを使って表しなさい。 正方形ABCDの1辺の長さは√acm, 正方形 ECFGの1辺の長さは5cmだから, BF=BC+CF =√a+√6(cm) (2) 右の図2は、図1で, 線分BF上に点Hをと り 正方形AHGI をか いた図で, Ⅰは直線EC 上にある。 図1 AI = AH ... ② AD=AB ··· ③ 7 B a cm² A 図2 51-8/1 ② P.51 平方 √a cm √b cm² B bcm² E D (a+b)cm しかし CH 正方形AHGIの面 積を, α, bを使って 表しなさい。 Bを中心とする半径FGの円とBF 交点をH, Aを中心とする半径AHO △ADIと△ABHにおいて、円と半直線CEとの交点をIとすると 正方形AHGIが作図できるよ。 ∠ADI=∠ABH=90° ① (証明は三角形の合同を使うよ。考えて ビタニ まった (a+b) cm² 正方形AHGIの1辺の長さをを使 ヒツ を使 ①,②, ③ より,直角三角形で, 斜辺と他の1辺がぞ ぞれ等しいから, AADI≡△ABH 同様に, △IEG≡△HFG よって、 正方形 AHGI の面積は、 正方形ABCDの面積 正方形 ECFGの面積の和に等しい。 M

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英語 中学生

1945年の4月1日に始まった沖縄戦の間アメリカ軍の島への上陸があり, 80人以上の沖縄の人々が洞窟 に避難したあとその中で自殺したと考えられています。 がこの一文の訳なのですが、believedは何に訳されているのでしょうか??

t forced to commit suicide in the closing days of World War II, police have said. The boys, between the ages of 16 and 19, have said that they destroyed two *signboards and origami paper cranes left by visitors to the Chibichirigama cave between Sept. 5 and last Tuesday, police said Friday. 着 During the *Battle of Okinawa, which started on April 1, 1945, with the landing of the U.S. *army on the island, more than 80 Okinawa people were believed to commit suicide in the cave after taking *refuge there. Similar cases of suicide took place at other places during the battle. Family members of those people who killed themselves at the site during the war discovered the damage last Tuesday and reported it to police. Norio Yonaha, 63, who lost five members of his family in the suicide, told reporters that this was “an *insult to the people who died" there. Bottles and vases left behind by the dead people were also damaged. About 100,000 people, or almost a quarter of the local people, died in the three-month ground battle in Okinawa between the Japanese army and the U.S. army. In total, more than 200,000 (life) were lost, *including those of Americans. (2017, September 16). Japan Times Can you see “Chibichirigama” in the news report? “Gama” means “cave” in Okinawa. We can see natural gama here and there in Okinawa. Himeyurinotou is built on top of one of these gama. During World War II, gama were used as *trenches by the Japanese army and as places of refuge by Okinawa people. [ 7 ] because they had nothing to eat and no medicine for *wounds and sickness. Many were killed by the U.S. army who burned people to death. [ ] because they spoke Okinawa words. Some babies were also killed because they (cry). Many had to commit suicide because the Japanese army ordered then didn't stop to do so. [], but not always. In fact, there were lots of people who died in gama. Gama te us how terrible war is. NAZ

解決済み 回答数: 1