Solution of triangles (Latin: solutio triangulorum) is the main trigonometric problem of finding the characteristics of a triangle (angles and lengths...

be restricted to spherical triangles, referred to simply as triangles. Both vertices and angles at the vertices of a triangle are denoted by the same upper...

right-angled triangle, but one has a 1×1 hole in it. The key to the puzzle is the fact that neither of the 13×5 "triangles" is truly a triangle, nor would...

are given. The theorem is used in solution of triangles, i.e., to find (see Figure 3): the third side of a triangle if two sides and the angle between...

Proofs of trigonometric identities Pythagorean trigonometric identity Tangent half-angle formula Solution of triangles Law of sines Law of cosines Law of tangents...

angle opposite one of them were given. For triangles with two sides and the included angle, he divided them into right triangles that he could then solve...

equilateral triangles are similar. Two triangles, both similar to a third triangle, are similar to each other (transitivity of similarity of triangles). Corresponding...

journal of semiotics Super Soft Source or Super soft X-ray source Omega baryon (Ω−), with a quark content of sss Side-side-side, solution of triangles with...

Congruence of triangles may refer to: Congruence (geometry)#Congruence of triangles Solution of triangles This disambiguation page lists articles associated...

equilateral triangles themselves form an equilateral triangle. Notably, the equilateral triangle tiles the Euclidean plane with six triangles meeting at...

special cases are degenerate. For example, right triangles, isosceles triangles and equilateral triangles are non-generic and non-degenerate. In fact, degenerate...

In trigonometry, a skinny triangle is a triangle whose height is much greater than its base. The solution of such triangles can be greatly simplified...

trigonometry, the law of cosines (also called the cosine rule for sides) is a theorem relating the sides and angles of spherical triangles, analogous to the...

numbers of lines for which an optimal solution is known. 3 lines, 1 triangle 4 lines, 2 triangles 5 lines, 5 triangles 6 lines, 7 triangles 7 lines,...

high-school (or GCSE exam takers in the United Kingdom). It features a range of problems set out in a different format and wider content to the standard Mathematics...

rational solutions of the above equation) are sometimes also called Heronian triangles or rational triangles; in this article, these more general triangles will...

classification of shapes was used as a satire of social hierarchy: isosceles triangles represented the working class, with acute isosceles triangles higher in...

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...

triangles are said to be 5-Con or almost congruent if they are not congruent triangles but they are similar triangles and share two side lengths (of non-corresponding...

and obtuse triangles (oblique triangles) Spiral of Theodorus Trirectangular spherical triangle Di Domenico, Angelo S., "A property of triangles involving...

Uses of trigonometry De Finetti diagram Triangle mesh Nonobtuse mesh Encyclopedia of Triangle Centers Pythagorean Triangles The Secrets of Triangles Triangular...

respect to triangles △ACD, △BCD; This leads to draw two other equilateral triangles △ACF, △BCG, where F, G are located outside the △ABC triangle, as well...

The concept of included angle is discussed at: Congruence of triangles Solution of triangles This disambiguation page lists mathematics articles associated...

triangular grid made of equilateral triangles. Its sides alternate in length: six sides coincide with the grid and are 7 triangles (placed edge-to-edge)...

{\tbinom {6}{3}}=20} different triangles, four of which are shaded in the figure. Six of these 20 triangles, with two of the shaded shapes, have area 1/8;...

original contribution, but merely restated Snellius 75 years later. Solution of triangles Triangulation (surveying) Bowser: A treatise Norman J. Wildberger...

right side, the triangles are placed such that the corners of the square correspond to the corners of the right angle in the triangles, forming a square...

the points. This maximizes the size of the smallest angle in any of the triangles, and tends to avoid sliver triangles. The triangulation is named after...

special right triangles are specified by the relationships of the angles of which the triangle is composed. The angles of these triangles are such that...

Side-side-side is a means of analyzing triangles discussed at: Solution of triangles § Three sides given (SSS) SSS postulate This disambiguation page lists...