学年

教科

質問の種類

数学 中学生

この問題の解説をお願いします🙏明日数学の入試があります!どうかよろしくお願いします🙇🏻

[gl 次の1、 2の問いに答えなさい. 1 次の 和 適 ツ 7 ししす に半数または衝を入れ 会話文を完成させよ。 先生:図1は. 正人面体の見取図と展開図です。 図 1 正人面体とは。 どのような立体でしたか。 生徒 : 8 個の合同な正三角形で囲まれた立体で. 頂点が6 個, 辺が 本あります。 先生: そうですね。では, 正八面体の体積を立方体を使って求めてみましょう。図2のように. 立方体のそれぞれの面の対角線の交点を A, B, C, D. E.Fとするとき. この6 個の点 を頂点とする正八面体ができます。このとき, 四角形AEFC. ABFD. BCDE は合同な 正方形です。 立方体を正方形 BCDE を含む平面で切った切り口は図3のようになり. 正方形 BCDE の対角線の長さは, 立方体の 1 辺の長さと等しいことが分かります。 立方体の 1 辺の長きを 4 cm として正八面体 ABCDEF の体積を求めてでみましょ う8 図2 図3 E Nト 二せy| "! 0 N Nめ C コイ hh!だひら、基上 候@ョlcm* < 。 休が正人面体の体積となります。 です。 この正四角すいの体村 F八面体の特徴にもよく気がつきました。 すくなります。 正八面体の 3 体積が氷めや : 立方体を使う 先生 : 立方体を全 Di では 次の問題はどうでし

回答募集中 回答数: 0
数学 中学生

お願いします

Do you like dogss OU He dogs7 People ay tha dogs ae me oldew fiends orhumans Some 所 Te Vi People as Pets o tnlk about some Dogs we led by many peopls。 Now Tm gomg kinds of dogs w 「 Tes Working fordiabled peopkk。 They are not pes。 Toy are saiiance dogE 1p Japan。 there are three kinds of assistanee dogs。 They are gnide dogs。 service doB3 and Teng dogy Tody。 jn Japan。 more tan a momsand ssshtance dogs work for diabled PeoPIe To of thom are guide dogs。 The mumber of senrice dogs and hearing dogs is mot So large 人 OF Mey 1 2017。 here were onby abowe seveny senoe dogs mm Japan。 The number of hearing dogs was about he same. Guide dogs work for peopls who cannot see。 Guide dogs lead thc users when hy 8O 9 Herent places。 The dogs walk with the uscrs and gnuide them im a sefc way。 For Purposc。 guide dogs are ( A ) to go stmight along the road。 The users know hhe situaon j front of them thanks to the dogs、 and give dmectoons to the dogsy such as Wai FComer md “Sright go.” We can say that a gnide dog and the user work together to walk safely。 Service dogs work for people who cannot use their ams or legs ficcly。 Scrvice dogs do a Jot of things in daily lives for such people. For example。 they pick up things on the floor opcn. and close doors, and bring things from other places。 When something dangerous happens。 the dog can even run to some other people and ask thcm for hclp。 We can say that service dogs [で①語 Hearing dogs work for pcople who cannot hear。 Haring dogs can understand many kinds or sounds。 such as phones alanm clocksr cping babics nd so on。 The dogs 【 by /tel/ is heard / usi ig / thc users / their / what sound 】bodies: ER lece。 the dogs ouch the users and lead them to the place。 Hearing dogs can tcll many kinds of sonnds to the users and help them The law about assistance dogs says that they can go with the users imto many places Hike Testanrants, supenmarkets, and so on. So you have many chances to see thcm。 But you should amember one important thing about them。 Assiance dogs are not pets。 They are working 5r the users. so you must not talk to them or touch them。 OF course you must not give them ay food. Asshtance dogs md the usems respect eech othier ss Partnets。 When you meet an ssistance dog and te uscr in town。 just see what they dO。 TF they need some help。 lers ghve them a hand.

回答募集中 回答数: 0
数学 中学生

お願いします

Do you like dogss OU He dogs7 People ay tha dogs ae me oldew fiends orhumans Some 所 Te Vi People as Pets o tnlk about some Dogs we led by many peopls。 Now Tm gomg kinds of dogs w 「 Tes Working fordiabled peopkk。 They are not pes。 Toy are saiiance dogE 1p Japan。 there are three kinds of assistanee dogs。 They are gnide dogs。 service doB3 and Teng dogy Tody。 jn Japan。 more tan a momsand ssshtance dogs work for diabled PeoPIe To of thom are guide dogs。 The mumber of senrice dogs and hearing dogs is mot So large 人 OF Mey 1 2017。 here were onby abowe seveny senoe dogs mm Japan。 The number of hearing dogs was about he same. Guide dogs work for peopls who cannot see。 Guide dogs lead thc users when hy 8O 9 Herent places。 The dogs walk with the uscrs and gnuide them im a sefc way。 For Purposc。 guide dogs are ( A ) to go stmight along the road。 The users know hhe situaon j front of them thanks to the dogs、 and give dmectoons to the dogsy such as Wai FComer md “Sright go.” We can say that a gnide dog and the user work together to walk safely。 Service dogs work for people who cannot use their ams or legs ficcly。 Scrvice dogs do a Jot of things in daily lives for such people. For example。 they pick up things on the floor opcn. and close doors, and bring things from other places。 When something dangerous happens。 the dog can even run to some other people and ask thcm for hclp。 We can say that service dogs [で①語 Hearing dogs work for pcople who cannot hear。 Haring dogs can understand many kinds or sounds。 such as phones alanm clocksr cping babics nd so on。 The dogs 【 by /tel/ is heard / usi ig / thc users / their / what sound 】bodies: ER lece。 the dogs ouch the users and lead them to the place。 Hearing dogs can tcll many kinds of sonnds to the users and help them The law about assistance dogs says that they can go with the users imto many places Hike Testanrants, supenmarkets, and so on. So you have many chances to see thcm。 But you should amember one important thing about them。 Assiance dogs are not pets。 They are working 5r the users. so you must not talk to them or touch them。 OF course you must not give them ay food. Asshtance dogs md the usems respect eech othier ss Partnets。 When you meet an ssistance dog and te uscr in town。 just see what they dO。 TF they need some help。 lers ghve them a hand.

回答募集中 回答数: 0