Heptagonal triangle heptagonal triangle's orthic triangle, with vertices at the feet of the altitudes, is similar to the heptagonal triangle, with similarity ratio 1:2. The heptagonal triangle is the only obtuse triangle that is similar to its orthic triangle (the equilateral triangle being the only acute one). The various trigonometric identities associated with the heptagonal triangle include these:, The cubic equation has solutions formula_66 and formula_67 which are the squared sines of the angles of the triangle. The positive solution of the cubic equation equals formula_69 which is twice the cosine of one of the triangle’s angles. We also have: For an
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,