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数学 中学生

(2)②がわからないです😖 答えは 21/4 cm²です

範f 3 下の図1のように, AB<ADの長方形ABCDがある。頂点Aが辺BC上に重なるように折 り返し、折り返した線と辺AD, BCとの交点をそれぞれE, Fとする。また, 頂点Aが移っ た点をA', 頂点Bが移った点をB'とする。 (1) 右の図2のように, ZA'EF= 48° 土 のとき,ZEFB'の大きさを求めなさい。 48 か E 3L0 228 732 CA) 10 ここで BF A C B 図2 F B" IC A B この 図1 (2)右の図3は,会話文中の下線部(a)に E D ついて考えるために,頂点Aが頂点Cに 太郎さんと花子さんの次の会話を読んで, あとの (1), (2) の問いに答えなさい。 重なるように折り返した場合を表したも のである。 (太郎さんと花子さんの会話) 太郎:図1の図形で, 折り返した図形の性質から, 等しい角や線分の長さを見つけるこ 「出の とができるね。 0 ACDE=△CB'F であることを証明 (4 しなさい。 花子:そうだね。まずは, もとの四角形ABCDは長方形だから, ZE AB=ZEA'B'= 90°, ZABF==ZA'B'F= 90° S F ち 方 ち がいえるね。 ち 年中る 太郎:他にあるかな。 B' 図3 花子:線分AEと線分A'Eの長さ, 線分BFと線分B'Fの長さがそれぞれ等しいね。 、頂点Aが頂点Cに重なるように折り返すと, どうなるかな。 さすJ出 太郎: 花子:合同な三角形がいくつかできる気がするわ。 2 線分AFと線分BEとの交点をGとする。 AB=6cm, AD=8 cm, CE=: - 25. とき,△BCGの面積を求めなさい。 4 Cmの わとも 01e43 RO さい。 s YRe 16

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英語 高校生

2枚目下から2段落目のhis first oratorio in Englishだけを見て、 彼にとって初の英語のオラトリオなのか 彼の初めてのオラトリオが英語でかかれたのか、 どちらか特定することは可能ですか??

The two greatest composers of the Baroque era would be George Your group is preparing a poster presentation entitled “The Greatest Baroque Frideric Handel and Johann Sebastian Bach. Handel was born in Halle, | Brandenburg-Prussia (nowGermany), in 1685. Unlike Bach, who was born 54 第5問 (配点 20) is Composer," using information from the magazine article below. rade and four fingers on ト m to be able to perform into a great musical family, Handel's father was a surgeon. rwhich he wrote severa/ apse again wathina yea. Handel composed his S Handel showed an exceptional talent in playing instruments from very early age. He learned harpsichord, violin, and organ from the organist at the Halle parish church, Friedrich Wilhelm Zachow. Zachow recognized a Handel's extraordinary talent and systematically introduced him to a diakand to give charity slist pertormed in D , but enjoyed great variety of styles of music. He also taught Handel composition. It is said L.he was invited byr th. that Handel started to compose at the age of nine. In 1702, Handel became the organist at the Calvinist Cathedral in Halle. The wage was good, but the contract was just for one year. The next sperformed and loved ba In1752, Handel co. Sal. he continued to p year, he moved to Hamburg. He was hired by the orchestra of the Hamburg Oper am Gànsemarkt as a violinist and harpsichordist. In 1705, his first opera Almira was produced. In Hamburg, he made three more operas. He was recognized as a brilliant opera composer. tan three thousand pe Handel was invited to Italy in 1706 by Gian Gastone de' Medici, who had a keen interest in opera. Rodrigo, Handel's first all-Italian opera, was produced in Florence in 1707. In 1709, he produced another opera, Agrippina in Venice. It turned out to be a huge success and ran for 27 nights successively. In Italy, he also composed oratorios like La Resurrezione and II Trionfo del Tempo e del Disinganno. The oratorio 1S a narrative musical work for singers and an orchestra., based on a story from the Bible. Handel moved to England in 1712 and decided to live there permanently (He changed his nationality in 1727.) In 1713, he composed Utrecht Te Deum and Jubilate for Queen Anne, and was granted a yearly income O1 rer ir Ag Cos reciam al the Rigral Acade scanding qpers hke Cioh demy cadsed to functh

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