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...

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 …

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 …

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 …

Learn about the different types of triangles in geometry, their properties, and important formulas including the Pythagorean Theorem, Sine Law, Cosine Law, and area formulas.

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 …

Triangles are polygons (shapes) with three sides and three angles, which can be formed by connecting any three points in a plane. They are one of the first shapes studied in geometry.

This page explains the characteristics of triangles, which have three sides and angles summing to 180 degrees. They can be classified by side lengths into isosceles, equilateral, and scalene, …

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.

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. …