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The following other wikis use this file: Usage on ar.wikipedia.org 3 (عدد) Usage on ary.wikipedia.org 3; متلت; Usage on as.wikipedia.org ত্ৰিভুজ
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Because the internal angle of the equilateral triangle is 60 degrees, six triangles at a point occupy a full 360 degrees. The triangular tiling has Schläfli symbol of {3,6}. English mathematician John Conway called it a deltille , named from the triangular shape of the Greek letter delta (Δ).
Date/Time Thumbnail Dimensions User Comment; current: 00:26, 9 October 2013: 340 × 240 (4 KB): Alexander.stohr: added circle symmetry markers for better highlighting how the two circles relate to each other and where the location of the lower to triangle corners is
60° rhombus (2 triangles) (Blue) that can be matched with two of the green triangles; 30° Narrow rhombus (Beige) with the same side-length as the green triangle; Trapezoid (half hexagon or 3 triangles) (Red) that can be matched with three of the green triangles; Regular Hexagon (6 triangles) (Yellow) that can be matched with six of the green ...
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 triangle is a regular polygon, occasionally known as the regular triangle. It is the special case of an isosceles triangle by modern definition, creating more special properties.
A deltahedron is a polyhedron whose faces are all equilateral triangles. The deltahedron was named by Martyn Cundy, after the Greek capital letter delta resembling a triangular shape Δ. [1] Deltahedra can be categorized by the property of convexity. The simplest convex deltahedron is the regular tetrahedron, a
A ternary plot, ternary graph, triangle plot, simplex plot, or Gibbs triangle is a barycentric plot on three variables which sum to a constant. [1] It graphically depicts the ratios of the three variables as positions in an equilateral triangle .