Angle trisection drawn through formula_25 to the semicircle, resulting in the intersection formula_28. The angle formula_48 generated by formula_49 and formula_50 is the angle formula_51 sought. Another means to trisect an arbitrary angle by a "small" step outside the Greek framework is via a ruler with two marks a set distance apart. The next construction is originally due to Archimedes, called a "Neusis construction", i.e., that uses tools other than an "un-marked" straightedge. The diagrams we use show this construction for an acute angle, but it indeed works for any angle up to 180 degrees. This requires three facts from geometry (at
Backstreet Boys: Larger Than Life making it the most attended residency in Las Vegas in terms of average audience. Encore: Clips from BACKSTREET BOYS – SHOW 'EM WHAT YOU'RE MADE OF feature film (c) Pulse Films/K Bahn LLC 2015 and BSB personal archives Special Thanks: Notes Backstreet Boys: Larger Than Life Backstreet Boys: Larger Than Life is the first concert residency by American vocal group Backstreet Boys, performed at Zappos Theater (formerly The AXIS Theater) in the Planet Hollywood Resort & Casino in Las Vegas, Nevada. The show had its opening night on March 1, 2017 and is scheduled to close on April 27, 2019