教えてください

(2) 図で、四角形ABCDは平行四辺形で, E, Fは それぞれ対角線BDの垂直二等分線と辺AD, BC との交点である。 ZABC=60°, AB=4cm, BC=8cmのとき, F 次のD, のの問いに答えなさい。 3 Ab:トHニ 2: AH= 3 16 マ2 の 平行四辺形ABCDの面積は何cm?か, 求めな (さい。 線分BFの長さは何cmか, 求めなさい。

xの角度を求める問題なのですが、わからないです。誰か教えてください！

A BK42 58% IC E D

おねがいしまぁーす‼️ 中２ 数字です

次の問いに答えなさい。 (1)右の図のように, AB= ACの二等辺三角形ABCの点B, Cから辺AC, ABに垂線をひき, その交点をそれぞれP, Qとする。 このとき, BP= CQ となることを次のように証明した。 |をうめなさい。 [証明] △QBCと△ア]において, 仮定より,Zイ]=ZCPB =90° ① 二等辺三角形の ウ」は等しいから, Z|エ]=ZPCB また,BCは共通 0. 2, 3より,直角三角形の オ]が それぞれ等しいから、 -2 P …3 B "C △QBC =APCB したがって,対応する辺の長さは等しいから, BP = カ (2)右の図で, △ABCは, BCA=90° の直角二等辺三角形である。辺AB上 の点Dと点Cを通る直線lへ,点A, Bからそれぞれ垂線AH, BKをひく。 をうめなさい。 A。 このとき,AH= CKとなることを次のように証明した。 [証明] △|ア]と△CKBにおいて, 仮定より,ZAHC = Z イ] =90° ① らはい ZBCA =90° から, ZHCA + Z|ェ390° ZCKB=90° から, ZKBC+ ZBCK=| オ したがって,Z HCA= Z カ 0, 2, ③より, 直角三角形の AC = ウ …の D H B Ce …3 キ」がそれぞれ等しいから, △AHC =△CKB したがって,対応する辺の長さは等しいから, AH= CKとなる。

この(3)の問題、答案見ても理解できませんでした。。。解説お願いしたいです。 答えは6分の35です。

2 1 右の図のように、 y= ーのグラフ上に2点A, Bがあり,それぞれ 図 の座標を正の数 a, bとし,aくbとする。 もどし、 Aから軸に垂線 AH とy軸に重線 AJを,Bからy軸に垂線 BK 1 をひき, AH とBK の交点をCとすると,四角形OHCK の面積はっで フ 20k 1 あった。 (2015 比叡山) 口(1) 四角形 OHAJの面積を求めなさい。 コミもの(バ (00)(S 面 である。 直線 と を0 て 予 |C B o aJ 遠 TA0でさty S 口(2) bをaを用いて表しなさい。 い。 6a か(0。 るま (2014 千葉県 選間O千 L AO食験 口(3) △OABの面積を求めなさい。 ト| |

学校のロッカーに解答集置きっぱで… 大変申し訳ございませんが、採点お願いします🙇💦 間違ってるとこは答え教えて下さると助かります🙏

nP ー Unit 4のまとめ 文法·読解 ます。 o you know (Jane / sad / why / is / does / ? ) Do you know _wJanc Sad (2) アレックスに何がほしいか聞こう。 Let's ask ( he / Alex / what / does / wants / . ) Let's ask Aleと what wants he (3) これは1900年に作られた自動車です。 (Is / a car /in 1900 / this / making / made / . ) This is a caur _made in 1900 (4) 同こうでテニスをしている女の子たちは, 私の友達です。 (over there / the girls / tennis / play / playing ) are my friends. are my frie oveA_thckc are mye The ginls plaing Tennis. 2会話でcheck) 日本語を参考にして, 会話を完成させなさい。 りな Scene | 梨奈とベン(Ben)は話題のケーキ店に開店前にやって来ました。 Rina: Look, Ben! ®There is a long line cakes. of (ケーキを待っている人たちの長い列があるわ。) Ben: Wow! So many people! Rina: ®The _cake made here (ここで作られているケーキは本当においしいの。) are really good. ®Rina, can you tell me what timc (梨奈,今何時か教えてくれる?) Is H Ben: now? Rina: Sure. It's 9:30. 3( )内の語を適切な形にかえて, 意味の通る文にしなさい。 1) This is a cture _taken. by my father in Hokkaido. (take 2) That girl _having. lunch under the tree is my friend. ( have 3) This cake is really good! Please show me how you _haking ! ) I don't know where Erika _hought the blue shoes. (buy) 5 eighty-six

学校のロッカーに解答集置きっぱで… 大変申し訳ございませんが、採点お願いします🙇💦 間違ってるとこは答え教えて下さると助かります🙏

nP ー Unit 4のまとめ 文法·読解 ます。 o you know (Jane / sad / why / is / does / ? ) Do you know _wJanc Sad (2) アレックスに何がほしいか聞こう。 Let's ask ( he / Alex / what / does / wants / . ) Let's ask Aleと what wants he (3) これは1900年に作られた自動車です。 (Is / a car /in 1900 / this / making / made / . ) This is a caur _made in 1900 (4) 同こうでテニスをしている女の子たちは, 私の友達です。 (over there / the girls / tennis / play / playing ) are my friends. are my frie oveA_thckc are mye The ginls plaing Tennis. 2会話でcheck) 日本語を参考にして, 会話を完成させなさい。 りな Scene | 梨奈とベン(Ben)は話題のケーキ店に開店前にやって来ました。 Rina: Look, Ben! ®There is a long line cakes. of (ケーキを待っている人たちの長い列があるわ。) Ben: Wow! So many people! Rina: ®The _cake made here (ここで作られているケーキは本当においしいの。) are really good. ®Rina, can you tell me what timc (梨奈,今何時か教えてくれる?) Is H Ben: now? Rina: Sure. It's 9:30. 3( )内の語を適切な形にかえて, 意味の通る文にしなさい。 1) This is a cture _taken. by my father in Hokkaido. (take 2) That girl _having. lunch under the tree is my friend. ( have 3) This cake is really good! Please show me how you _haking ! ) I don't know where Erika _hought the blue shoes. (buy) 5 eighty-six

急ぎです‼︎ （3）の問題が分かりません💦 どなたか解説お願いします🙇‍♀️🙏

ロロ 93 右の図の立体は, 円錐を底面に平行な平面で切り, 小 さい円錐を取り除いたものです。この立体の切り口の 円の半径 AHが2cm, もとの円錐の底面の半径BK が5cm, 残った立体の高さ HKが6cmのとき,次の 問いに答えなさい。 (1) 取り除いた小さい円錐の高さ OH の長さを求めな さい。 CHEC 例題11 (テキストp.510 2cm Al 6cm 5cm -コ K B (2) この立体の体積は, 取り除いた小さい円錐の体積 の何倍ですか。 (3) の立体の体積を求めなさい。

答えがない高校の過去問です。 回答確認のために教えてほしいです。

【2】次の英文を読んで, 下の(1)~ (5)の英文の( を書きなさい。 )に当てはまる最も適当なものを, それぞれア~エの中から1つずつ選び, その記号 *Ogasawara Islands are a group of islands in *the Pacific Ocean, about. 1000 kilometers south of Tbkyo. There are more than 30 islands, and about 3000 people live on the two largest islands. They are sometimes called “Tolyo's *Hidden Islands' or **the Galapagos of the East". When Ogasawara people go to Tbkyo, they have to take a ferryboat for 24 hours because there is no airport. Ogasawara Islands are far from the main islands, so there are many kinds of *unique plants and animals.They are called *endemic species. Thirty - six percent of the plants on the islands'are endemic species. We can see those plants only in Ogasawara Islands. Because only plants and animals that have *adapted to Ogasawara *environment could *survive, unique *ecosystems were developed. This is a story about people who saved two kinds of animals on Ogasawara Islands. One is a red-headed wood pigeon, Karasu Bato".: This is one of the endemic species on Ogasawara Islands. Birds usually live on trees and *protect themselves from their *enemies. But red-headed wood pigeons on the islands have no enemies, so they live on the ground. Their living environment has changed since people brought cats to the islands as pets. Some of them *went wild and became *stray cats. Amother cat usually has about 20 babies a year, so the number of the stray cats *kept increasing and a lot of pigeons were eaten by them. In 2002, the number of the pigeons was only about 40. People began to think they should do something to protect this endemic species and natural environment on Ogasawara Islands. In 2008, people on the islands, Japanese and *overseas researchers, *public officials and animal doctors met together and started a project to save the pigeons. At thé meeting, they decided to *get rid of the stray cats, but they didn't know what to do. So after the meeting, they asked *the Tbkyo Veterinary Medical Association for advice. Animal doctors in this association *cooperated with a lot of volunteers and started a project to save the stray cats. They said, “The pigeons can't survive outside the islands, but cats can live in Tokyo. We want to save both kinds of animals,” The stray cats were *caught and carried to Tbkyo by ship. Animal doctors and volunteers took care of them and looked for their new fanmilies. From 2008 to 2018, about 800 stray cats were sent to Tokyo to start their new ife. Also, the number of pigeons has increased to about 400 now. This story shows that people may have a bad *influence on the natural environment, but we can protect and make it better by cooperating with each other. A person who took part in this project said, “It is important for us to think how we can keep the natural environment for the future." “Aka-gashira *the Pacific Ocean 太平洋 *unique 独特の *environment 環境 *went wild 野生化した *Hidden 隠された *endemic species 固有種 *ecosystems 生態係 (注) *Ogasawara Islands 小笠原諸島 *the Galapagos ofthe East 東洋のガラパゴス *adapted adapt 「適応する」 の過去形·過去分詞 *protect~ ~を守る *kept increasing 増え続けた *get rid of ~ *suIvive 生き残る *stray cats ノラネコ *public officials 公務員 *enemies 敵 *overseas researchers 海外の研究者 *c0operated 協力した ~を駆除する *caught catch 「~をつかまえる」の過去形·過去分詞 *the Tokyo Veterinary Medical Association 東京都獣医師会 *influence 影響

答えがない高校の過去問です。 回答確認のために教えてほしいです。

【2】次の英文を読んで, 下の(1)~ (5)の英文の( を書きなさい。 )に当てはまる最も適当なものを, それぞれア~エの中から1つずつ選び, その記号 *Ogasawara Islands are a group of islands in *the Pacific Ocean, about. 1000 kilometers south of Tbkyo. There are more than 30 islands, and about 3000 people live on the two largest islands. They are sometimes called “Tolyo's *Hidden Islands' or **the Galapagos of the East". When Ogasawara people go to Tbkyo, they have to take a ferryboat for 24 hours because there is no airport. Ogasawara Islands are far from the main islands, so there are many kinds of *unique plants and animals.They are called *endemic species. Thirty - six percent of the plants on the islands'are endemic species. We can see those plants only in Ogasawara Islands. Because only plants and animals that have *adapted to Ogasawara *environment could *survive, unique *ecosystems were developed. This is a story about people who saved two kinds of animals on Ogasawara Islands. One is a red-headed wood pigeon, Karasu Bato".: This is one of the endemic species on Ogasawara Islands. Birds usually live on trees and *protect themselves from their *enemies. But red-headed wood pigeons on the islands have no enemies, so they live on the ground. Their living environment has changed since people brought cats to the islands as pets. Some of them *went wild and became *stray cats. Amother cat usually has about 20 babies a year, so the number of the stray cats *kept increasing and a lot of pigeons were eaten by them. In 2002, the number of the pigeons was only about 40. People began to think they should do something to protect this endemic species and natural environment on Ogasawara Islands. In 2008, people on the islands, Japanese and *overseas researchers, *public officials and animal doctors met together and started a project to save the pigeons. At thé meeting, they decided to *get rid of the stray cats, but they didn't know what to do. So after the meeting, they asked *the Tbkyo Veterinary Medical Association for advice. Animal doctors in this association *cooperated with a lot of volunteers and started a project to save the stray cats. They said, “The pigeons can't survive outside the islands, but cats can live in Tokyo. We want to save both kinds of animals,” The stray cats were *caught and carried to Tbkyo by ship. Animal doctors and volunteers took care of them and looked for their new fanmilies. From 2008 to 2018, about 800 stray cats were sent to Tokyo to start their new ife. Also, the number of pigeons has increased to about 400 now. This story shows that people may have a bad *influence on the natural environment, but we can protect and make it better by cooperating with each other. A person who took part in this project said, “It is important for us to think how we can keep the natural environment for the future." “Aka-gashira *the Pacific Ocean 太平洋 *unique 独特の *environment 環境 *went wild 野生化した *Hidden 隠された *endemic species 固有種 *ecosystems 生態係 (注) *Ogasawara Islands 小笠原諸島 *the Galapagos ofthe East 東洋のガラパゴス *adapted adapt 「適応する」 の過去形·過去分詞 *protect~ ~を守る *kept increasing 増え続けた *get rid of ~ *suIvive 生き残る *stray cats ノラネコ *public officials 公務員 *enemies 敵 *overseas researchers 海外の研究者 *c0operated 協力した ~を駆除する *caught catch 「~をつかまえる」の過去形·過去分詞 *the Tokyo Veterinary Medical Association 東京都獣医師会 *influence 影響

中3数学です。

400 D B Z 0 T1o の BK48° o98 C り 32° B C