一番の問題です。3:5となるので、のところからマーカーが引いてあるところの式＝cf＝3分の4が求められる意味がわかりません。誰か教えていただけると嬉しいです。

5 右の図のように、AD:DC=3:2 BE: ED=5:4, DG/BCである △ABCがある。このとき、次の問いに > 答えなさい。 ただし, 最も簡単な整数の 比で表しなさい。 G D E B (1) BF:FCの値を求めなさい。 F (2) AE:EFの値を求めなさい。 (3) BEF: △ABCの値を求めなさい。 4-5 C 11 454 =a=-x 3 3:5 4 a 4 3=5=3の ⑥6 右の図のように、正方形ABCDを底面とし40104のことで

What is chemistry?.

v で始まる単語を教えてください🙏

Isabelle received two excellent job offers, so she had a difficult time deciding which one to accept. She ( ) for several days before finally deciding.

a で始まる単語を教えてください🙏

) to that just before The economist described the current situation as ( the Wall Street Crash of 1929. He called on the government to act quickly to avoid a similar event.

c で始まる単語を教えてください🙏

The soldiers ( ) a direct order by attacking the enemy despite being told not to do so. They will be punished for their actions.

解説お願いしますm(_ _)m 答えは5分の12 3：2です。

④ 右の図で △ABCと△ADE はともに正三角形であり,点Dは 辺BC上にある。 (1) CFの長さを求めなさい。( cm) (2) DF: FE を最も簡単な整数の比で求めなさい。 ( (明星高) 10cm E B 4 cm C

（2）ウになる理由教えてください🙇🏻‍♀️

B 次の英文は、留学生のトム(Tom) の送別会 (farewell party) の計画を伝えるための文書で す。 これを読んで問いに答えなさい。 Tom's Farewell Party Plan *As you know, Tom, a member of our English club, is going back to America next Sunday. Let's have a farewell party for him. Please check below. Date: July 19 (Friday) Time: 15:45-16:45 Place: Classroom 2-4 <*Roles for preparation> Make a movie for Tom Prepare some games *Decorate the classroom <Roles at the party> Kumiko Jane Takuya Take pictures Make a farewell speech Makoto All of us We'll take pictures of everyone when the party starts. Let's have a meeting three days before the party and think about what else we can do for Tom's party. (注) as you know 知ってのとおり role (s) prepare 準備する decorate 飾る preparation 問1 次の(1),(2)の英文について,本文の内容から考えて、 なものを, それぞれア~エから選びなさい。 (1) The farewell party will be held 7 in the classroom decorated by the English club members 1 after Kumiko makes a farewell speech for forty-five minutes two days before Tom goes back to America I for Tom after school because he leaves for Japan (2) The members of the English club will have a meeting for the party 7 on Sunday ウ on Tuesday イ on Monday エ on Friday に当てはまる最も適当

【誰か教えてほしいです🙇】 この3番はどうやって解きますか？？

3 長さが6cmの線分ABを直径とする円Oがあります。図I のように,円Oの周上に AC=4cmとなる点Cをとり,点B と点Cを結びます。 また, 線分AB上に AC = AD となる点D をとり,点Cと点Dを結びます。さらに,点Dから線分AC に 垂線をひき、線分ACとの交点をEとします。 次の1~4の問いに答えなさい。 1 線分 BC の長さを求めなさい。 2 △ABC∽△ADE であることを証明しなさい。 3 △CED の面積を求めなさい。 E C した本 A OD

相似の利用です 大門4の(1)で、解説に△ABDと△DCFが相似と書いてあったのですが、どうしてわかるのか教えてください

AR □ (2) ACD∽△ADF であることを証明せよ。 B □ (3) AB=16cm, BD=4cm のとき, 線分AF, ADの長さをそれぞれ求めよ。 |||レベル2 4 次の図で、△ABCと△ADEは正三角形である。この値を求めよ。 1 A (2) E E F 252 A (3) F 4 B C B6 D AR B-28-21--C 7 5 右の図で,△ABC∽△DAC, 2点M, Nはそれぞれ辺 AB, 'ADの中点である。このとき,△MBC∽△NACであることを 証明せよ。

数を聞く問題で、答え方がこれと、もうひとつあるらしいのですが、なにか教えて欲しいです🙇‍♀️③

40c (青森) 73 次の英文はケンタ (Kenta)のスピーチである。これを読んで、あとの質問に英語で答えなさい。 I get up at six thirty and have breakfast every morning. But a week ago, I got up at seven forty because I finished my homework and went to bed very late. I didn't have time to have breakfast and came to school without it I was hungry during class and became *sleepy in the morning. I usually play volleyball well in *PE but I couldn't play it well that day. I thought having breakfast was very important, so I asked my *classmates some questions about breakfast. There are forty students in our class. Thirty-six classmates had breakfast. Three of them had only milk for breakfast. Two of them had *snacks for breakfast. There four classmates who didn't have breakfast. They felt bad and tired. were When we have breakfast, we can study harder and play sports better at school. Let's have it every morning and enjoy our school lives. 〔注〕 sleepy : 眠い PE: # classmate(s): 1 What time does Kenta get up every morning? He gets up at six thirty. Diag 2 Why was Kenta hungry during class? snacks: Because he didn't have time to have breakfast to school without it. 3 How many students are there in Kenta's class? There are forty students in his class TO and Came