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.
John Logie Baird, a Scotsman, invented the first fully working TV system in the United Kingdom. It was first demonstrated in 1925 in London and was the first system to be used â¦ for public scheduled broadcasts in 1929.The system was electro-mechanical and used a rotating disc to deliver a picture.ohn Logie Baird (August 13, 1888 - June 14, 1946) a Scottish engineer invented the TV on the 26th January 1926 and it was demonstrated a year later in 1927 the phonovision â¦ system of recording TV.