Hyperbolic triangle relations between the sides "s" and the angles "A" of an equilateral triangle (a triangle where all sides have the same length and all angles are equal). The relations are: Whether "C" is a right angle or not, the following relationships hold: The hyperbolic law of cosines is as follows: Its dual theorem is There is also a "law of sines": and a four-parts formula: For hyperbolic trigonometry: Hyperbolic triangle In hyperbolic geometry, a hyperbolic triangle is a triangle in the hyperbolic plane. It consists of three line segments called "sides" or "edges" and three points called "angles" or "vertices".
The Three Degrees following year they released a new single "Holding Back". In January 2011, Freddie Pool replaced Cynthia Garrison, who was suffering from Piriformis syndrome, as the Degrees had touring commitments to fulfill. In 2016 The Three degrees released their first full-length studio album with member Freddie Pool entitled "Strategy: Our Tribute To Philadelphia", through Cherry Red Records. The Holiday/Scott/Garrison version of The Three Degrees was the longest running formation of the group (1989–2010). The Three Degrees The Three Degrees is an American female vocal group, which was originally formed in 1963 in Philadelphia, Pennsylvania. Although a total of 15 women have