学年

教科

質問の種類

数学 中学生

(3)でBL =2分の1のところから何もわからないのでなぜそうなるか詳しく教えてください

問3 図3図4は、長方形ABCD の紙を折ったものである。 ただし, AB<AD とする。 このとき、次の問いに答えなさい。 (1) 長方形にどんな条件を加えると、正方形になりますか。 説明しなさい。 向かい合う辺で考えればとなり合う辺の長さが等しい 対角線で考えれば対角線が垂直に交わる (2) 図3は,対角線BD を折り目として折ったもので ある。 点Aが移った点をEとし, 辺BC と線分 DE との交点をFとする。 <DFC=76°のとき, ∠BDF の大きさを求めなさ 1つの外角はそのとなりにない内角の和に等しい <BDF+<DBF= 76° 等しい 2×<BDF= 76° <BDF=380 (3) 図4は,点Aが辺BC上に重なるように折った ものである。 点Aが移った点をLとし, 折り目の 線分を DM とする。 AD=4cm, △DML の面積が4cm²のとき, 長方 形ABCDの面積を求めなさい。 図3 A B つまりCD=120cm 長方形の面積は4×12=64 図 4 - 9 A AD=DL=4cm <DMLの面積が40m² より B ML=AM=2 (ML×4×2=4より) M 平行線の BL+LC=ADとなるから 1/12x+2(x-2)=4 12/2x+2x-4=4 5 12/2x=8 錯角 64 5cm X=10 16 5 4cm AMBLUALCDでML:LD=2:4=1:2 つまり相似比 1:2 CD=1cmとすると BL=/1/2x.MB=x-2 LC=2(x-2) E 折り返した ので角は 等しい F\ C 76° D

回答募集中 回答数: 0
英語 中学生

問1の①ってどうしてtoじゃダメなんですか?

10 【読解問題】 英文を読んで問いに答えなさい。 Ocean. In 1997, an ocean researcher reached a new “land" when he was sailing across the Pacific However, it was actually a huge amount of garbage (float) in the ocean. land was made of big and tiny plastic pieces. It is now ② (call) the Great Pacific Garbage Patch. The In fact, there are five patches the world. ③ (in the Pacific/which / the largest / the researcher / of all / the patch/found/is). 研究者が太平洋で見つけたごみベルトは全ての中で最も大きいです。 The garbage patches are harmful to sea animals. They often get caught in fishing nets on the surface and cannot escape. They also eat small plastic pieces by mistake because these pieces look like their food. The plastics that human throw away kill many sea animals every year. It is said that the Great Pacific Garbage Patch contains about 80,000 tons of garbage. Some researchers say that there will ④ (is) more garbage than fish by 2050. We should reduce our use of plastic and gather the garbage in the sea. 問1 下線部 ①②④を正しい形に書き換えなさい。 問2 下線部③を正しい語順に並び替えなさい。 問3 次の質問に英語で答えなさい。 ただし ( )内の条件に従うこと。聞け Why do sea animals eat small plastic pieces by mistake? (7語以内の英語で) 問4 本文の内容と合っていればOを,違っていれば×を書きなさい。 (ア) An ocean researcher started to live on a new “land” in 1997. (イ) The five patches are nice places to live for sea animals. (ウ) Every year, many sea animals are killed by plastics humans throw away. 11 【英作文】指示に従って英文を書きなさい。 問 次の質問にあなた自身の立場で英語で答えなさい。 ただし、 質問への答えと理由を含めて15語以上 の英語で書くこと。 What is the most important to you? 2 次のようなときどのように言うか、英語で書きなさい。 ただし、( )内の単語を用いること (1) 「彼は日本で有名な歌手だ」と伝えるとき。 (a singer / who ) (2) 「これは私が一番好きな食べ物だ」 と伝えるとき。 (the food / which )

解決済み 回答数: 1
英語 中学生

回答を解説含め教えて頂きたいです🙇‍♀️🙏

問題10 【思考・判断・表現】 (2×9=18) 健(Ken)はクラスの友達に切手 (stamp) と地図 (map)を見せながら、ブータン王国 (Bhutan)に住む文通相手 (pen pal)のタシ (Tashi)との交通についてスピーチをしてい ます。 次の英文を読んで、あとの (ア) ~ (ケ)の各問いに答えなさい。 ow or W atploaoro to Yo ont bib SW (1) Hi, everyone. I'm going to talk about my pen pal. Please look at this stamp. Have you ever seen a big stamp like this? It's samm not a Japanese stamp. Then (0)? Tashi, my pen pal no Satologado tuodo in Bhutan, sent it to me last week. Bhutan has interesting stamps. I'll talk a little about (E) Syobot Bhutan. Please look at this map. Bhutan is between China and India. It's bigger than Kyushu and has many high mountains. People in that country have clothes like Japanese kimonos, and they grow and eat rice. Tashi and I became pen pals last year. I've never seen him, (2) I've seen his father. His father came to Japan to study at college, and my mother was his Japanese teacher. When she brought him to our house, he told me about his family. He said, "My son is as old nh's Snipsd as you. He wanted to come to Japan with 3me, but he had to stay in Bhutan. He is very Cbil yohl(5) (5) interested in Japan and wants a Japanese friend. If you write a letter to him, he will be very (4)." Tashi's father also told me about his country. It was very interesting. So I Estoloporis sver of sent a letter to Tashi, and we started writing letters to each other. We write letters in English. I didn't like writing English before, but now I enjoy it. Tashi writes English very well because teachers in Bhutan usually speak English when they teach. He sometimes uses difficult words in his letters, so I need a ( 5 ) to read them. We write about our countries, schools, families, and friends. He uses beautiful stamps to him, too. Thank you for listening.

解決済み 回答数: 1
英語 中学生

回答を解説含め教えて頂きたいです🙇‍♀️🙏

問題6 【知識・技能】 (2x5=10) (S) 次の(ア)~ (オ)の対話が完成するように、( 選んで正しい順番に並べた時、その ( )内で3番目と5番目にくる語の番号をそ れぞれ答えなさい。(それぞれ一つずつ不要な語があるので、その語は使用しないこと。) (7) A: What (1 is 2 she 3 will 4 be 5 time 6 back )? STAAT DIH B: Sorry, I don't know. bluorie bril risidW ymsla 2101 4 5 2ot at sae of fnow I 3 spote* srit of ges13 srit sup() :osbil ・・・東京 内の6つの語の中から5つを lot onom rigongavor thob aw nint I etnsbute not atsait loibaqa she SISHT (1) A: Oh, I forgot to bring my smart phone and a map. Will you ( 1 to 2 where 3 get 4 how 5 me B: Ok. But he (1 me tesqosilo srit non't spote Sunday? (1) A: You are a good piano player, right? B: Thank you. mont SW 3 2 415 m aw dnight I Cont vud of may 000, etsxoit owt szo baan sW osbiH (¹) A: I can see two students. I think he is John and ... who is she?t tap 213] miT B: The girl ( 1 sitting 2 to 3 is 4 on 5 John 6 next) Miku. spota = 270130* orla atsinsT XO obit 6 tell ) there? nint (*) A: I heard you couldn't meet your friend. 2 wait B: No. I ( 1 asked But she forgot where to see. 64 21h52 5ill you What will you atos) (1) 2 better 3 can 4 than 5 play the piano 6 well ). 35421 may 000,8 may 000. may 000, may 000,5 may 000,2 600,T Lay 000,5 20 (T) E hoë H tes20 3 friend 4 to 5 what 6 my ) here. 14635

回答募集中 回答数: 0