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The following other wikis use this file: Usage on ar.wikipedia.org دوال مثلثية عكسية; Usage on cs.wikipedia.org Cyklometrická funkce
Khan Academy: Trigonometry, free online micro lectures; Trigonometry by Alfred Monroe Kenyon and Louis Ingold, The Macmillan Company, 1914. In images, full text presented. Benjamin Banneker's Trigonometry Puzzle at Convergence; Dave's Short Course in Trigonometry by David Joyce of Clark University; Trigonometry, by Michael Corral, Covers ...
Geometry is used extensively in trigonometry. Angle – the angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed by two rays lie in a plane, but this plane does not have to be a Euclidean plane.
A spherical ruler with two scaled edges for drawing great-circle arcs and measuring spherical angles and great-circle distances; A spherical compass and center locator for drawing small circles; A set of wet-wipe markers for writing and drawing on the sphere and transparencies; A hanger for displaying spherical constructions and designs
Basis of trigonometry: if two right triangles have equal acute angles, they are similar, so their corresponding side lengths are proportional.. In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) [1] are real functions which relate an angle of a right-angled triangle to ratios of two side lengths.
When the direction of a Euclidean vector is represented by an angle , this is the angle determined by the free vector (starting at the origin) and the positive -unit vector. The same concept may also be applied to lines in a Euclidean space, where the angle is that determined by a parallel to the given line through the origin and the positive x ...
A trigonometry table is essentially a reference chart that presents the values of sine, cosine, tangent, and other trigonometric functions for various angles. These angles are usually arranged across the top row of the table, while the different trigonometric functions are labeled in the first column on the left.