
Triangle - Wikipedia
Triangles are classified into different types based on their angles and the lengths of their sides. Relations between angles and side lengths are a major focus of trigonometry. In particular, the sine, …
Triangles - Equilateral, Isosceles and Scalene
A triangle has three sides and three angles. The three angles always add to 180°. There are three special names given to triangles that tell how...
Types of Triangles - Definitions, Properties, Examples
There are different types of triangles in math based on their sides and angles. Learn about different types of triangles, and their classification based on the side lengths and angles, with concepts, …
Triangle: Definition, Parts, Properties, Types, Formulas
May 13, 2024 · Triangles are classified into two groups: based on sides, 1) scalene, 2) isosceles, and 3) equilateral triangles; based on angles, 1) acute angle, 2) obtuse angle, and 3) right or right-angled …
Triangle Types and Classifications: Isosceles, Equilateral, Obtuse ...
Types of Triangles Isosceles, Equilateral, Scalene, Obtuse... Triangles can be classified by various properties relating to their angles and sides. The most common classifications are described on this …
Types of triangle - KS2 Maths - Year 5 - BBC Bitesize
Discover the different types of triangles and find out the difference between an equilateral, scalene, isosceles and right-angled triangle in this KS2 guide.
Triangles in Geometry - Definition, Shape, Types, Properties
A triangle is a three-sided polygon that has 3 angles, and 3 vertices. Learn the definition of triangles, their types, parts, properties using a variety of examples.
Types Of Triangles (video lessons, examples and solutions)
Triangles are polygons that have three sides, three vertices and three angles. The sum of all the angles in any triangle is 180°. Triangles can be classified according to the size of its angles. Some examples …
Triangle | Definition & Facts | Britannica
Dec 5, 2025 · triangle, in geometry, a three-sided polygon. Triangles are formed by three line segments, sometimes called edges, whose end points intersect at points known as the vertices. The seemingly …
Properties of Triangle - GeeksforGeeks
Jul 23, 2025 · Triangles are classified into three types: equilateral (all sides and angles are equal), isosceles (two sides and two angles are equal), and scalene (all sides and angles differ).