Special right triangle : , which follows immediately from the Pythagorean theorem. Of all right triangles, the 45°–45°–90° degree triangle has the smallest ratio of the hypotenuse to the sum of the legs, namely . Of all right triangles, the 45°–45°–90° degree triangle has the greatest ratio of the altitude from the hypotenuse to the sum of the legs, namely . Triangles with these angles are the only possible right triangles that are also isosceles triangles in Euclidean geometry. However, in spherical geometry and hyperbolic geometry, there are infinitely many different shapes of right isosceles triangles. This is a triangle whose three angles
Kim (given name) – where the child was born. From the 1900s to the 1960s, the name Kim was mainly given to boys, despite the use of this name for both male and female characters in popular literature and, later, movies of the time. In Scandinavia Kim can more often be used as a male name in its own right, being a common short form of Joakim. In Russia (Kim) is a diminutive/nickname of Ioakim (), "Joachim". Its popularity in the early Soviet era was explained as it being also the acronym for (Kommunistichesky Internatsional Molodyozhi, Young Communist International). Kim (given name) Kim