A right triangle (American English) or right-angled triangle (British English) is a triangle in which one angle is a right angle (that is, a 90- degree angle). The relation between the sides and angles of a right triangle is the basis for trigonometry. The side opposite the right angle is called the hypotenuse (side c in the figure). The sides adjacent to the right angle are called legs (or catheti, singular: cathetus).
Who was the first person to invent television? The first person to invent a fully functional television was Philo Taylor Farnsworth, an amateur inventor from Idaho. He publicly displayed his invention in 1927 but had conceived of the technology as early as 1921, when he was only 14 years old.
In November 1929, Bernard Natan established France's first television company, Television-TÃ©lÃ©vision-Baird. Natan On april, 14, 1931 there took place the first transmission with a-thirty line standard By Rene. RenÃ© Barthelemy barthÃ©lemy, on, December 6 1931 henri de France Created the Compagnie (GENERALE). gÃ©nÃ©rale de television tÃ©lÃ©vision cgthe first color television project is claimed by him, and was patented in Germany on March 31, 1908, patent â 197183, then in Britain, on April 1, 1908, patent â 7219, in France (patent â 390326) and in Russia in 1910 (patent â 17912).