• Thumbnail for Equilateral triangle
    An equilateral triangle is a triangle in which all three sides have the same length, and all three angles are equal. Because of these properties, the equilateral...
    25 KB (2,644 words) - 16:53, 22 April 2025
  • Thumbnail for Reuleaux triangle
    Reuleaux triangle into an inner equilateral triangle and three curvilinear regions between this inner triangle and the arcs forming the Reuleaux triangle, and...
    57 KB (6,497 words) - 06:20, 24 March 2025
  • Thumbnail for Circle packing in an equilateral triangle
    possible equilateral triangle which an amount n of unit circles can be packed into? More unsolved problems in mathematics Circle packing in an equilateral triangle...
    6 KB (392 words) - 21:06, 21 January 2025
  • Thumbnail for Sierpiński triangle
    Sierpiński triangle, also called the Sierpiński gasket or Sierpiński sieve, is a fractal with the overall shape of an equilateral triangle, subdivided...
    23 KB (2,723 words) - 22:57, 17 March 2025
  • Thumbnail for Hexagon
    Hexagon (redirect from Equilateral hexagon)
    hexagon can also be considered as the cutting off the vertices of an equilateral triangle, which can also be denoted as t { 3 } {\displaystyle \mathrm {t}...
    31 KB (2,873 words) - 04:12, 17 May 2025
  • Thumbnail for Triangle
    to Euclid. Equilateral triangle Isosceles triangle Scalene triangle Right triangle Acute triangle Obtuse triangle All types of triangles are commonly...
    55 KB (6,518 words) - 01:13, 30 April 2025
  • Thumbnail for Isosceles triangle
    including the equilateral triangle as a special case. Examples of isosceles triangles include the isosceles right triangle, the golden triangle, and the faces...
    38 KB (4,157 words) - 15:47, 24 March 2025
  • In geometry, an equilateral polygon is a polygon which has all sides of the same length. Except in the triangle case, an equilateral polygon does not need...
    5 KB (547 words) - 19:22, 28 June 2024
  • Thumbnail for Hyperbolic triangle
    geometry can for example be defined as the length of a side of an equilateral triangle with fixed angles. The length scale is most convenient if the lengths...
    13 KB (1,759 words) - 00:39, 5 March 2025
  • Thumbnail for Napoleon's theorem
    of those equilateral triangles themselves form an equilateral triangle. The triangle thus formed is called the inner or outer Napoleon triangle. The difference...
    22 KB (2,901 words) - 02:30, 15 February 2025
  • Thumbnail for Cuboctahedron
    (tesseract). Radially equilateral polytopes are those that can be constructed, with their long radii, from equilateral triangles which meet at the center...
    24 KB (2,142 words) - 02:40, 3 March 2025
  • puzzle writer Henry Dudeney in 1902. It seeks a dissection from equilateral triangle into a square. Dudeney provided a hinged dissection with four pieces...
    4 KB (395 words) - 05:05, 2 April 2025
  • Thumbnail for Morley's trisector theorem
    in any triangle, the three points of intersection of the adjacent angle trisectors form an equilateral triangle, called the first Morley triangle or simply...
    13 KB (2,232 words) - 15:25, 6 April 2025
  • Thumbnail for Triangular prism
    square faces is the internal angle of an equilateral triangle π/3 = 60°, and that between a square and a triangle is π/2 = 90°. The volume of any prism is...
    19 KB (1,608 words) - 04:20, 24 March 2025
  • Thumbnail for Integer triangle
    only such triangles are rational-sided equilateral triangles. Any triple of positive integers can serve as the side lengths of an integer triangle as long...
    40 KB (7,271 words) - 07:08, 9 April 2025
  • Thumbnail for Rep-tile
    Similarly, if a polyiamond tiles an equilateral triangle, it will also be a rep-tile. A right triangle is a triangle containing one right angle of 90°....
    16 KB (1,638 words) - 01:40, 14 May 2025
  • Thumbnail for Koch snowflake
    an equilateral triangle, and each successive stage is formed by adding outward bends to each side of the previous stage, making smaller equilateral triangles...
    21 KB (2,165 words) - 20:06, 4 May 2025
  • Thumbnail for Triangle center
    fail to qualify as triangle centers. For an equilateral triangle, all triangle centers coincide at its centroid. However the triangle centers generally...
    32 KB (3,896 words) - 00:24, 25 April 2025
  • Thumbnail for Isodynamic point
    Isodynamic point (category Triangle centers)
    transforms the given triangle into an equilateral triangle, and that the distances from the isodynamic point to the triangle vertices are inversely proportional...
    15 KB (1,958 words) - 22:36, 15 November 2024
  • Rabbi Yehosef Ralbag. The hechsher is a letter K enclosed in an equilateral triangle. They supervise a number of major brands, including Del Monte, Hebrew...
    4 KB (317 words) - 02:20, 13 August 2024
  • Thumbnail for Ptolemy's theorem
    as a corollary a theorem regarding an equilateral triangle inscribed in a circle. Given An equilateral triangle inscribed on a circle, and a point on...
    28 KB (5,051 words) - 22:17, 19 April 2025
  • Thumbnail for Einthoven's triangle
    by the two shoulders and the pubis. The shape forms an inverted equilateral triangle with the heart at the center. It is named after Willem Einthoven...
    4 KB (543 words) - 01:12, 13 June 2024
  • Thumbnail for Vesica piscis
    forms the first step in constructing an equilateral triangle using a compass and straightedge. The triangle has as its vertices the two disk centers...
    12 KB (1,458 words) - 18:02, 21 February 2025
  • Thumbnail for Orthocenter
    Orthocenter (redirect from Orthic triangle)
    the triangle is acute. For a right triangle, the orthocenter coincides with the vertex at the right angle. For an equilateral triangle, all triangle centers...
    19 KB (2,672 words) - 22:01, 22 April 2025
  • Thumbnail for Golden ratio
    one side of an ideal triangle to the closer of the other two sides: this distance, the side length of the equilateral triangle formed by the points of...
    114 KB (13,221 words) - 17:08, 30 April 2025
  • Thumbnail for Icosahedron
    can both be called regular icosahedra. Each has 30 edges and 20 equilateral triangle faces with five meeting at each of its twelve vertices. Both have...
    12 KB (890 words) - 08:57, 5 April 2025
  • case is the regular octahedron, a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex. Regular octahedra occur in nature...
    37 KB (3,708 words) - 18:19, 13 May 2025
  • Thumbnail for Triangle inequality
    points with such distances cannot exist: the area of the 26–26–26 equilateral triangle ABC is 169 3 {\textstyle 169{\sqrt {3}}} , which is larger than three...
    34 KB (5,268 words) - 20:23, 13 April 2025
  • Thumbnail for Altitude (triangle)
    triangle if and only if the triangle is acute. For a right triangle, the orthocenter coincides with the vertex at the right angle. For an equilateral...
    9 KB (1,334 words) - 18:39, 21 April 2025
  • Thumbnail for Inscribed square in a triangle
    coinciding with part of the triangle's longest side. The Calabi triangle, an obtuse triangle, shares with the equilateral triangle the property of having three...
    5 KB (576 words) - 19:15, 17 February 2025