Equilateral triangle terms of side length "a" can be derived directly using the Pythagorean theorem or using trigonometry. The area of a triangle is half of one side "a" times the height "h" from that side: The legs of either right triangle formed by an altitude of the equilateral triangle are half of the base "a", and the hypotenuse is the side "a" of the equilateral triangle. The height of an equilateral triangle can be found using the Pythagorean theorem so that Substituting "h" into the area formula (1/2)"ah" gives the area formula for the equilateral triangle: Using trigonometry, the area of
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