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
Poem of the Right Angle some of Le Corbusier's paintings from the 1930s. It is orthogonal, architectural and labyrinthine. F.3. The symbol of the open hand appears as an "offering", and the interior lines and contours reveal traits and hidden characteristics. E.3. The presentation of a "tool" is an analogy to the Philosopher's stone, both the solution and the question, thus establishing the cyclical nature of the work. Poem of the Right Angle The Poem of the Right Angle ("Le Poeme de l'Angle Droit") is a series of 19 paintings and corresponding writings composed by the influential Swiss-French architect Le Corbusier between 1947 and 1953.