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Пожалуйста помогите, нужно вычислить площадь многоугольника:
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Предмет:
Математика -
Автор:
mr. clean - 6 лет назад
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Ответы 2
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помогите пожалуйста с геометрией
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Автор:
julienpoole - 6 лет назад
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0
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Ответ: 163.5
Пошаговое объяснение:
Площади прямоугольных треугольников находили по формуле полупроизведения катетов, площадь ΔEFD по формуле половины произведения основания на высоту, а площадь пятиугольника KJILF как разность площади шестиугольника KJILFM (которую можно посчитать например по клеточкам) и треугольника KFM
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Автор:
guillermocarpenter - 6 лет назад
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0
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Mykola Ivanovich Pirogov was a prominent Russian scientist, medical doctor, pedagogue, public figure, and corresponding member of the Russian Academy of Sciences (1847). He is considered to be the founder of field surgery, and was one of the first surgeons in Europe to use ether as an anaesthetic. He was the first surgeon to use anaesthesia in a field operation (1847), invented various kinds of surgical operations, and developed his own technique of using plaster casts to treat fractured bones. He is one of the most widely recognized Russian physicians.
Pirogov was born on 25 November 1810 in Moscow, Russia, to a major in the commissary service. He learned to read in several languages as a young child. His father died in 1824, leaving his family destitute. Pirogov originally intended to become a civil servant, but the family doctor, Yefrem Mukhin, who was a professor of anatomy and physiology at Moscow State University, persuaded the authorities to accept him as a student aged only 14.[1]
Despite limited experience at medical school, Pirogov decided to specialize as a surgeon when he completed his studies in 1828. He completed further studies at the German University of Dorpat, (now the state university in Tartu, Estonia), receiving a doctorate in 1832 on the ligation of the ventral aorta. There he studied under Professor Moyer, who was trained by Italian anatomist Antonio Scarpa, both influencing figures for Pirogov, and was professor from 1836 to 1840. In May 1833, he travelled to Berlin, meeting surgeons Karl Ferdinand von Graefe, Johann Nepomuk Rust and Johann Friedrich Dieffenbach at the University of Berlin. Germany's renowned surgeon, Professor Bernhard von Langenbeck, taught Pirogov how to properly use the scalpel, namely like a violin bow. Pirogov also visited the University of Göttingen.
In October 1840, Pirogov took up an appointment as professor of surgery at the academy of military medicine in Saint Petersburg,[1] and undertook three years of military service in this period. He first used ether as an anaesthetic in 1847, and investigated cholera from 1848. Around this time he compiled his anatomical atlas, Topographical anatomy of the human body (vol. 1–4, 1851–1854).
He worked as an army surgeon in the Crimean War, arriving in Simferopol on December 11, 1854. From his works in the Crimea, he is considered to be the father of field surgery. He followed work by Louis-Joseph Seutin[2] in introducing plaster casts for setting broken bones, and developed a new osteoplastic method for amputation of the foot, known as the "Pirogov amputation". He was also the first to use anethesis in the field, particularly during the siege of Sevastopol, and he introduced a system of triage into five categories. He encouraged female volunteers as an organised corps of nurses, the Khrestovozdvizhenskaya (ru) community of nurses established by Grand Duchess Yelena Pavlovna, echoing the efforts made by Florence Nightingale for the British.-
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