Equilateral triangle Equilateral triangle In geometry, an equilateral triangle is a triangle in which all three sides are equal. In the familiar Euclidean geometry, an equilateral triangle is also equiangular; that is, all three internal angles are also congruent to each other and are each 60°. It is also a regular polygon, so it is also referred to as a regular triangle. Denoting the common length of the sides of the equilateral triangle as "a", we can determine using the Pythagorean theorem that: Denoting the radius of the circumscribed circle as "R", we can determine using trigonometry that: Many of these quantities
The Three Degrees (album) The Three Degrees (album) The Three Degrees is a 1973 studio album released by girl group The Three Degrees. Since their formation in 1963 until 1969, The Three Degrees had released several hit singles on various labels, including Swan Records, Warner Bros. Records, Metromedia, and Neptune. Their first studio album, entitled "Maybe" was released on Roulette Records in 1970 as were several other singles on the same label. This was the first studio album recorded by the Group for Philadelphia International Records and was produced by Kenny Gamble and Leon Huff. Released in 1973, the album includes three hit singles,