Octagon eight lines of reflective symmetry and rotational symmetry of order 8. A regular octagon is represented by the Schläfli symbol {8}. The internal angle at each vertex of a regular octagon is 135° (formula_1 radians). The central angle is 45° (formula_2 radians). The area of a regular octagon of side length "a" is given by In terms of the circumradius "R", the area is In terms of the apothem "r" (see also inscribed figure), the area is These last two coefficients bracket the value of pi, the area of the unit circle. The area can also be expressed as where
What Does Anything Mean? Basically What Does Anything Mean? Basically What Does Anything Mean? Basically is the second studio album by English post-punk band the Chameleons. It was recorded in January 1985 and released 1 October 1985 by record label Statik. One single was released from the album: "Singing Rule Britannia (While the Walls Close In)". "What Does Anything Mean? Basically" was recorded in January 1985 at Highland Studios in Inverness, Scotland. The album's sole single, "Singing Rule Britannia (While the Walls Close In)", was released on 1 August 1985. This song used uncredited Lennon-McCartney lyrics, with the final passage of the song quoting key