Noah and the Whale Presents the A Sides Noah and the Whale Presents the A Sides Noah and the Whale Presents the A Sides is a limited edition EP released on 25 December 2008 by the folk rock band Noah and the Whale on Mercury Records Limited. Only 2500 copies of the album were released on 12" vinyl with all of the proceeds going towards the charity Age Concern. Recorded over two nights with a two-take limit, the album is described on the Young And Lost Club website as "A mixture of unheard originals and covers, and ground-breaking artwork from the band’s long-term collaborator Alex Brenchley, the raw
Pentagon 72,72,36 degrees. From trigonometry, we know that the cosine of twice 18 degrees is 1 minus twice the square of the sine of 18 degrees, and this reduces to the desired result with simple quadratic arithmetic. The regular pentagon according to the golden ratio, dividing a line segment by exterior division A regular pentagon is constructible using a compass and straightedge, either by inscribing one in a given circle or constructing one on a given edge. This process was described by Euclid in his "Elements" circa 300 BC. A direct method using degrees follows: After forming a regular convex pentagon,