Right angle of what a right angle is, namely two straight lines intersecting to form two equal and adjacent angles. The straight lines which form right angles are called perpendicular. Euclid uses right angles in definitions 11 and 12 to define acute angles (those smaller than a right angle) and obtuse angles (those greater than a right angle). Two angles are called complementary if their sum is a right angle. Book 1 Postulate 4 states that all right angles are equal, which allows Euclid to use a right angle as a unit to measure other angles with. Euclid's commentator Proclus gave a
Larger than Life (House) Larger than Life (House) "Larger Than Life" is the ninth episode of the seventh season of the American medical drama "House". It aired on January 17, 2011. When a musician named Jack (guest star Matthew Lillard) puts his life on the line to save a stranger who fell onto subway tracks, he emerges unscathed, then suddenly collapses, much to his young daughter Daisy's distress. The team works to diagnose his problem as his condition worsens, with only House remaining cynical about his heroism. Masters insists it must be an infection, but House dismisses the idea. Jack, who is away from