TRIANGLE CENTERS Long before the first pencil and paper, some curious person drew a triangle in the sand and bisected the three angles. He noted that the bisectors …

On a triangle, there are angles. There are different types of angles (acute, obese, right). Is the acute angle bigger or smaller than the right angle?

Vertex: The vertex (plural: vertices) is a corner of the triangle. Every triangle has three vertices. Base: The base of a triangle can be any one of the three sides …

Triangle. A triangle is a 3-sided polygon sometimes (but not very commonly) called the trigon. Every triangle has three sides and three angles, some of which may be …

Terminology. In an isosceles triangle that has exactly two equal sides, the equal sides are called legs and the third side is called the base. The angle included by …

Theory: This triangle has internal angles ‘A’, ‘B’ and ‘C’, and sides of length ‘a’, ‘b’ and ‘c’: If three of these six measurements are known, then it may be …

Equilateral Triangle / Equiangular Triangle A triangle having all three sides of equal length is called an equilateral triangle. A triangle having three equal angles …

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted . In Euclidean …

Triangle Classification. The basic elements of any triangle are its sides and angles. Triangles are classified depending on relative sizes of their elements.