• Thumbnail for 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,...
    32 KB (3,896 words) - 10:47, 26 August 2024
  • Thumbnail for Centroid
    Centroid (redirect from Triangle centroid)
    Archimedes learned the theorem that the medians of a triangle meet in a point—the center of gravity of the triangle—directly from Euclid, as this proposition is...
    25 KB (4,199 words) - 16:24, 2 June 2024
  • Thumbnail for Triangle
    to Euclid. Equilateral triangle Isosceles triangle Scalene triangle Right triangle Acute triangle Obtuse triangle Each triangle has many special points...
    49 KB (5,964 words) - 09:57, 12 September 2024
  • Thumbnail for Incircle and excircles
    incircle is a triangle center called the triangle's incenter. An excircle or escribed circle of the triangle is a circle lying outside the triangle, tangent...
    35 KB (5,710 words) - 01:35, 12 September 2024
  • Thumbnail for Triangle Center
    The Triangle Center is primarily an office complex with several restaurants and a coffee shop in downtown Lexington, Kentucky. Originally envisioned as...
    2 KB (268 words) - 02:09, 21 January 2024
  • Encyclopedia of Triangle Centers (ETC) is an online list of thousands of points or "centers" associated with the geometry of a triangle. This resource...
    6 KB (346 words) - 05:00, 11 August 2024
  • Thumbnail for Texas Triangle
    majority of the state's population. The Texas Triangle is formed by the state's four main urban centers, Austin, Dallas-Fort Worth, Houston, and San Antonio...
    18 KB (1,458 words) - 18:19, 9 August 2024
  • Thumbnail for Altitude (triangle)
    In geometry, an altitude of a triangle is a line segment through a given vertex (called apex) and perpendicular to a line containing the side or edge opposite...
    27 KB (3,761 words) - 04:40, 12 August 2024
  • Thumbnail for Acute and obtuse triangles
    acute triangle (or acute-angled triangle) is a triangle with three acute angles (less than 90°). An obtuse triangle (or obtuse-angled triangle) is a triangle...
    13 KB (2,153 words) - 09:46, 10 September 2024
  • Thumbnail for Equilateral triangle
    or r = R 2 {\displaystyle r={\frac {R}{2}}} The geometric center of the triangle is the center of the circumscribed and inscribed circles The altitude (height)...
    28 KB (3,717 words) - 06:28, 15 May 2024