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  2. 80 of the Most Useful Excel Shortcuts - AOL

    www.aol.com/lifestyle/80-most-useful-excel...

    Excel at using Excel with these keyboard hotkeys that will save you minutes of time—and hours of aggravation. The post 80 of the Most Useful Excel Shortcuts appeared first on Reader's Digest.

  3. Orthocenter - Wikipedia

    en.wikipedia.org/wiki/Orthocenter

    The three altitudes of a triangle intersect at the orthocenter, which for an acute triangle is inside the triangle.. The orthocenter of a triangle, usually denoted by H, is the point where the three (possibly extended) altitudes intersect.

  4. Triangle center - Wikipedia

    en.wikipedia.org/wiki/Triangle_center

    In geometry, a triangle center or triangle centre is a point in the triangle's plane that is in some sense in the middle of the triangle. For example, the centroid, circumcenter, incenter and orthocenter were familiar to the ancient Greeks, and can be obtained by simple constructions.

  5. 96 Shortcuts for Accents and Symbols: A Cheat Sheet

    www.aol.com/lifestyle/96-shortcuts-accents...

    For other symbols, such as the arrow, star, and heart, there isn’t a direct keyboard shortcut symbol. However, you can use a handy shortcut to get to the emoji library you’re used to seeing on ...

  6. Orthocentric system - Wikipedia

    en.wikipedia.org/wiki/Orthocentric_system

    Orthocentric system.Any point is the orthocenter of the triangle formed by the other three. In geometry, an orthocentric system is a set of four points on a plane, one of which is the orthocenter of the triangle formed by the other three.

  7. Nine-point center - Wikipedia

    en.wikipedia.org/wiki/Nine-point_center

    The nine-point center N lies on the Euler line of its triangle, at the midpoint between that triangle's orthocenter H and circumcenter O.The centroid G also lies on the same line, 2/3 of the way from the orthocenter to the circumcenter, [2] so

  8. Orthocentroidal circle - Wikipedia

    en.wikipedia.org/wiki/Orthocentroidal_circle

    In geometry, the orthocentroidal circle of a non-equilateral triangle is the circle that has the triangle's orthocenter and centroid at opposite ends of its diameter.This diameter also contains the triangle's nine-point center and is a subset of the Euler line, which also contains the circumcenter outside the orthocentroidal circle.

  9. Wikipedia : Codes for keyboard characters

    en.wikipedia.org/wiki/Wikipedia:Codes_for...

    This page lists codes for keyboard characters, the computer code values for common characters, such as the Unicode or HTML entity codes (see below: Table of HTML values"). ...