Special right triangle allows one to quickly calculate various lengths in geometric problems without resorting to more advanced methods. "Angle-based" special right triangles are specified by the relationships of the angles of which the triangle is composed. The angles of these triangles are such that the larger (right) angle, which is 90 degrees or radians, is equal to the sum of the other two angles. The side lengths are generally deduced from the basis of the unit circle or other geometric methods. This approach may be used to rapidly reproduce the values of trigonometric functions for the angles 30°, 45°, and 60°. Special
38 Degrees 38 Degrees 38 Degrees is a British not-for-profit political-activism organisation. It describes itself as "progressive" and claims to "campaign for fairness, defend rights, promote peace, preserve the planet and deepen democracy in the UK". In October 2013, it was reported to claim 1.9 million UK members. 38 Degrees takes its name from "the angle at which snowflakes come together to form an avalanche". The organisation launched on 26 May 2009. The 38 Degrees website states: "38 Degrees was founded by a group of activists and funders concerned about the state of our democracy and determined to try something different. Founders