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.
Philo T. Farnsworth, 14-year-old Inventor of Television Fri, 09/09/2011 - 8:36am Eighty-four years ago, the first known video transmission was made from an idea conceived by a child who was only 14 years old. August marks the birth of the man known as the Father of Television,Philo T. Farnsworth, and it seems fitting to tell a bit of his tale. Was he a child prodigy? Or just a visionary with the drive to make something of his vision?